what is work cited in research

MLA Citation Guide (9th edition) : Works Cited and Sample Papers

• Getting Started
• How do I Cite?
• In-Text Citations
• Works Cited and Sample Papers
• Additional Resources

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Quick Rules for an MLA Works Cited List

Your research paper ends with a list of all the sources cited in your paper. Here are some quick rules for this Works Cited list:

• Begin the works cited list on a new page after the text.
• Name it "Works Cited," and center the section label in bold at the top of the page.
• Order the reference list alphabetically by author's last name.
• Double-space the entire list (both within and between entries).
• Apply a hanging indent of 0.5 in. to each entry. This means that the first line of the reference is flush left and subsequent lines are indented 0.5 in. from the left margin.

Sample Paper with Works Cited List

The Modern Language Association (MLA) has compiled  several sample papers  that include explanations of the elements and formatting in MLA 9th edition. 

MLA Title Pages

MLA Title Page: Format and Template   This resource discusses the correct format for title pages in MLA style and includes examples.

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Harvard Guide to Using Sources 

• The Honor Code
• Works Cited Format

What is a Works Cited list?

MLA style requires you to include a list of all the works cited in your paper on a new page at the end of your paper.  The entries in the list should be in alphabetical order by the author's last name or by the element that comes first in the citation. (If there is no author's name listed, you would begin with the title.) The entire list should be double-spaced.

For each of the entries in the list, every line after the first line should be indented one-half inch from the left margin. "Works Cited" should be centered at the top of the page. If you are only citing one source, the page heading should be “Work Cited” instead of “Works Cited.” You can see a sample Works Cited here . 

Building your Works Cited list

MLA citations in the Works Cited list are based on what the Modern Language Association calls "core elements." The core elements appear in the order listed below, in a citation punctuated with the punctuation mark that follows the element. For some elements, the correct punctuation will be a period, and for other elements, the correct punctuation will be a comma. Since you can choose the core elements that are relevant to the source you are citing, this format should allow you to build your own citations when you are citing sources that are new or unusual.

The author you should list is the primary creator of the work—the writer, the artist, or organization that is credited with creating the source.  You should list the author in this format: last name, first name. If there are two authors, you should use this format: last name, first name, and first name last name. For three or more authors, you should list the first author followed by et al. That format looks like this: last name, first name, et al.

If a source was created by an organization and no individual author is listed, you should list that organization as the author.

Title of source .

This is the book, article, or website, podcast, work of art, or any other source you are citing. If the source does not have a title, you can describe it. For example, if you are citing an email you received, you would use this format in the place of a title:

Email to the author.

Title of container ,

A container is what MLA calls the place where you found the source. It could be a book that an article appears in, a website that an image appears on, a television series from which you are citing an episode, etc. If you are citing a source that is not “contained” in another source—like a book or a film—you do not need to list a container. Some sources will be in more than one container. For example, if you are citing a television episode that aired on a streaming service, the show would be the first container and the streaming service would be the second container.

Contributor ,

Contributors include editors, translators, directors, illustrators, or anyone else that you want to credit. You generally credit other contributors when their contributions are important to the way you are using the source. You should always credit editors of editions and anthologies of a single author’s work or of a collection of works by more than one author.  

If you are using a particular version of a source, such as an updated edition, you should indicate that in the citation.

If your source is one of several in a numbered series, you should indicate this. So, for example, you might be using “volume 2” of a source. You would indicate this by “vol. 2” in the citation.

Publisher ,

For books, you can identify the publisher on the title or copyright page. For web sites, you may find the publisher at the bottom of the home page or on an “About” page. You do not need to include the publisher if you are citing a periodical or a Web site with the same name as the publisher.

Publication date ,

Books and articles tend to have an easily identifiable publication date. But articles published on the web may have more than one date—one for the original publication and one for the date posted online. You should use the date that is most relevant to your work. If you consulted the online version, this is the relevant date for your Works Cited list. If you can’t find a publication date—some websites will not include this information, for example—then you should include a date of access. The date of access should appear at the end of your citation in the following format:

Accessed 14 Oct. 2022.

The location in a print source will be the page number or range of pages you consulted. This is where the text you are citing is located in the larger container. For online sources, the location is generally a DOI, permalink, or URL. This is where your readers can locate the same online source that you consulted. MLA specifies that, if possible, you should include the DOI. Television episodes would be located at a URL. A work of art could be located in the museum where you saw it or online.

Your citations can also include certain optional elements. You should include optional elements if you think those elements would provide useful information to your readers. Optional elements follow the source title if they provide information that is not about the source as a whole. Put them at the end of the entry if they provide information about the source as a whole. These elements include the following:

Date of original publication .

If you think it would be useful to a reader to know that the text you are citing was originally published in a different era, you can put this information right after the title of the source. For example, if you are citing The Federalist Papers , you would provide the publication date of the edition you consulted, but you could also provide the original publication date:

Hamilton, Alexander, et al., editors. The Federalist Papers . October 1787-May 1788. Oxford University Press, 2008.

City of publication .

You should only use this information if you are citing a book published before 1900 (when books were associated with cities of publication rather than with publishers) or a book that has been published in a different version by the publisher in another city (a British version of a novel, for example). In the first case, you would put this information in place of the publisher's name. In the second case, the city would go before the publisher.

Descriptive terms .

If you are citing a version of a work when there are multiple versions available at the same location, you should explain this by adding a term that will describe your version. For example, if you watched a video of a presidential debate that was posted to YouTube along with a transcript, and you are quoting from the transcript, you should add the word “Transcript” at the end of your citation. 

Dissertations

• Citation Management Tools
• In-Text Citations
• In-Text Citation Examples
• Examples of Commonly Cited Sources
• Frequently Asked Questions about Citing Sources in MLA Format
• Sample Works Cited List

PDFs for This Section

• Citing Sources
• Online Library and Citation Tools

Table of Contents

Ai, ethics & human agency, collaboration, information literacy, writing process, mla works cited.

• © 2023 by Barbara McLain - The Out-of-Door Academy , Joseph M. Moxley - University of South Florida

MLA Works Cited refers to the rules for compiling a list of references at the end of a text that cites sources according to the MLA Handbook, 9th Edition. Learn how teachers and editors evaluate an MLA works cited page.

What is MLA Works Cited?

MLA Works Cited refers to t he MLA’s (Modern Language Association’s) guidelines for formatting a list of references at the end of a text that cites sources.

The MLA Handbook, 9th Edition requires authors to provide a list of references — aka a works cited page — at the end of their texts

• to acknowledge the people and ideas that have informed their thinking and writing
• to provide citations for summarized , quoted, and paraphrased sources.

MLA Works Cited vs. MLA In Text Citation

The bibliographical information (e.g., who is the author? publisher? and so on) that MLA requires for a Works Cited Page differs from the bibliographic information it requires for an MLA citation in the body of a text.

Works Cited Page See the article below to learn about MLA’s guidelines for formatting a works cited page

In Text Citation See MLA Citation to explore creative ways to introduce and vet sources inside the body of your paper

Scholars use a variety of terms to refer to a works cited page , including references, sources, endnotes, citations.

Related Concepts:  Annotated Bibliography ; Copyright & Writing ; Intellectual Property ;  Page Design ; Plagiarism ; Rhetorical Analysis ; Textual Research Methods

Writers provide a works cited page so that their readers can

• learn more about the topic
• evaluate the currency, relevance, authority, accuracy, purpose of sources they’ve used in a text
• distinguish the author’s ideas and language from the ideas of others
• better understand the flow of a scholarly conversation for a particular topic over time (aka historiography)

In academic writing , teachers are likely to scrutinize the works cited page to see

• whether students have cited all of the sources they referenced in the body of the text
• whether or not the sources reflect the best available information on the topic, including the gated web
• whether the sources you have selected are appropriate given the rhetorical situation
• whether or not students have introduced new information, new sources, in ways that help readers with flow

In both academic and workplace writing, people

• cite sources to acknowledge the author’s copyright, intellectual property, ideas
• cite sources to add additional evidence , backing or qualifications for claims .

MLA Works Cited Page

Required bibliographical information.

Entries on your works cited list will include the following elements.

• Please note that every element listed below won’t necessarily apply to your source. For example, some sources won’t have an author identified, and periodicals don’t require publisher information. If the element listed doesn’t apply to your source, skip it and move on to the next element.
• list author’s name, last name first, followed by a period.
• Capitalize the first word and any major words in the title; enclose titles of articles in quotation marks and titles of larger works such as books, journals, or newspapers in italics.
• If the source you are citing is contained or included in a larger work, such as a journal or edited collection, provide the name of the container here, followed by a comma.
• List the names of other contributors, such as translators or editors, if appropriate, followed by a comma.
• For example, the 9th edition of the  MLA Handbook  is the version we are following here. For journals or magazines, you may instead have a volume number. Follow this with a comma.
• Issue numbers are preceded by the abbreviation “no.” and followed by a comma.
• You can usually find the publisher of a book on the title or copyright page. You do not need to include a publisher’s name for periodicals. Follow the publisher’s name with a comma.
• Provide the year of publication for books; for periodical publications, give the month and year, or day-month-year, if applicable. Follow the publication date with a comma if you have location information.
• For most publications, the location indicates the page number or numbers of the article and is preceded by the abbreviation “p.” for a single page or “pp.” for two or more pages. For online publications, the location is commonly designated by the URL or Web address, or the DOI (Digital Object Identifier), if available. Conclude the entry with a period.
• For an article in a journal accessed through an online database, list the title of the database as the container and whatever other information is available

Skip any information that is not available or applicable. For example, a book in print will not have a container, and a journal will usually not require information about a publisher.

Do include other pertinent information, such as the name of a translator, for instance, if available, in the order in which it is listed above. 

MLA Format Citation

How to Cite Work in MLA Format

Below are the common templates for citing sources.

Works Cited Rubric

The criteria for evaluating a works cited page may vary across academic and professional disciplines.

The rubric below distinguishes failing works cited pages from passing works cited pages . In this framework, a professional works cited list shows a sensitivity to the ongoing scholarly conversations on a topic . The author’s use of quotations, paraphrases, and summaries suggests the author is aware of the thought leaders and scholarly conversations on particular topics .

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Clarity (in Speech and Writing)

Coherence - How to Achieve Coherence in Writing

Flow - How to Create Flow in Writing

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MLA Citation Style

• The MLA Handbook
• Additional Resources
• In-Text Citations

What is a Works Cited Page?

What is a citation, dois, permalinks, and urls, works cited citation format.

• Plagiarism This link opens in a new window
• Additional Styles This link opens in a new window

A Works Cited is a list at the end of your paper that lists all of the resources you quoted from in your paper. 

A Works Cited will be a separate page from your paper and have your resources listed alphabetically by author (or title as needed) then by date (as needed). Consult the guide for specific resources or ask your professor.

How you create, order, and format a citation depends on the type of resource you used, how you accessed it, and what publication information the source provides. 

A citation gives credit to the source where you found the information you use to support your argument or analysis. That way, people can check the information you used to double-check your resources or to use for their own research.

Citations are composed of these parts of a resource: Author, Title, Publication Information, and Date. The elements of a citation can vary from format to format and how the resource was accessed.

In your paper, you will add a brief citation that will lead to a page of the resources you used at the end of your paper where the full citation goes into more detail. That way, your paper flows and can be easily verified.

Nowadays, most library databases have a "cite" function that will generate a full citation in the style you need. You can use that as a starting point and re-format or correct it as you need. 

Other resources don't generate a citation, but they have the information for you to create one, you simply need to look through the resource. 

These are locators for online resources. Resources on the internet can be available in more than one place or aren't always available. DOIs are the best way to track down a resource that is online. Permalinks, or stable links, are provided by several databases and can be clicked on when hyperlinked to take you to the resource's more specific location. A URL is the link in the address bar of your internet browser and clicking on that will try to take you to the exact location of the resource — but you might not be able to access the resource.

When a DOI is available, please use that when the citation needs a digital location. When there isn't one listed, you can use the permalink or stable link. If there isn't an option for a permalink (most general online resources won't have one) use the URL provided in the address bar. There are additional rules and suggestions when using a URL. Consult the guide book or ask your professor for preferences on shortened URLs or access dates. 

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12 What Is a Works Cited List?

A Works Cited list is an alphabetized list located on a separate page at the end of your paper that lists all the citations for the sources used in your paper to support your research.

Each citation is based on core elements specific to the source you are using. There are up to nine core elements , and they are arranged in a certain order and with the punctuation as shown below. Note that you will not need all elements for most of your citations.

The Core elements

1. Author. 2. Title of Source. 3. Title of Container, 4. Contributor, 5. Version, 6. Number, 7. Publisher, 8. Publication Date, 9. Location.

Core elements 1 and 2 :

1. Author. 2. Title of Source.

• are individual units
• each is followed by a period
• are only used once in a citation

Core elements 3-9:

3. Title of Container, 4. Contributor, 5. Version, 6. Number, 7. Publisher, 8. Publication Date, 9. Location.

• together form a unit, or container
• each element is followed by a comma except the last element used, which is followed by a period
• may need to be repeated

More about containers

A container may be located within another container. For example, an article is contained in a journal, and that journal may be contained in a database. In a case like that, you would need to add a second container to your citation, i.e. repeat elements 3-9. It is unlikely that you will ever need more than 2 containers to cite a source.

The sequence would then be:

Author . Title of Source .  Container One. Container Two.

For more explanation about core elements and containers, check out the MLA Online Guide .

What about information that doesn’t fit neatly into one of the core elements?

MLA allows for supplemental information to be added to a source if it helps for clarification. Depending on what this additional information is about, it may be added after the title or at the end of the citation.

Author . Title of Source . Supplemental Information. Container One. Container Two. Supplemental Information.

Using this template and the MLA Online Guide to help create a reference citation is like using a recipe. The ingredients are the key pieces of information about a source. If you’re missing an ingredient, leave it out or substitute it.

Following a recipe’s directions is like following a citation example. If you follow the directions and add the ingredients at the right point, then your recipe (i.e. your citation) will turn out!

You are not expected to memorize MLA guidelines. Instead, use available resources ( MLA Online Guide and this tutorial) to help guide you. Over time you will become more comfortable with creating citations yourself.

Image Attributions:

“ Pancake recipe with ingredients Free Vector ” by pikisuperstar is licensed under CC BY 4.0 International .

MLA Style Citations Copyright © 2021 by Ulrike Kestler is licensed under a Creative Commons Attribution-NonCommercial-ShareAlike 4.0 International License , except where otherwise noted.

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Start your research.

• Research Process
• Find Background Info
• Find Sources through the Library
• Evaluate Your Info
• Cite Your Sources
• Evaluate, Write & Cite

• is the right thing to do  to give credit to those who had the idea
• shows that you have read and understand  what experts have had to say about your topic
• helps people find the sources  that you used in case they want to read more about the topic
• provides   evidence  for your arguments
• is professional and  standard practice   for students and scholars

What is a Citation?

A citation identifies for the reader the original source for an idea, information, or image that is referred to in a work.

• In the body of a paper, the  in-text citation  acknowledges the source of information used.
• At the end of a paper, the citations are compiled on a  References  or  Works Cited  list. A basic citation includes the author, title, and publication information of the source. 

From:  Lemieux  Library,  University  of Seattle 

Why Should You Cite?

Quoting Are you quoting two or more consecutive words from a source? Then the original source should be cited and the words or phrase placed in quotes. 

Paraphrasing If an idea or information comes from another source,  even if you put it in your own words , you still need to credit the source.  General vs. Unfamiliar Knowledge You do not need to cite material which is accepted common knowledge. If in doubt whether your information is common knowledge or not, cite it. Formats We usually think of books and articles. However, if you use material from web sites, films, music, graphs, tables, etc. you'll also need to cite these as well.

Plagiarism is presenting the words or ideas of someone else as your own without proper acknowledgment of the source. When you work on a research paper and use supporting material from works by others, it's okay to quote people and use their ideas, but you do need to correctly credit them. Even when you summarize or paraphrase information found in books, articles, or Web pages, you must acknowledge the original author.

Citation Style Help

Helpful links:

• MLA ,  Works Cited : A Quick Guide (a template of core elements)
• CSE  (Council of Science Editors)

For additional writing resources specific to styles listed here visit the  Purdue OWL Writing Lab

Citation and Bibliography Resources

• How to Write an Annotated Bibliography
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Creative Commons Attribution 3.0 License except where otherwise noted.

Land Acknowledgement

The land on which we gather is the unceded territory of the Awaswas-speaking Uypi Tribe. The Amah Mutsun Tribal Band, comprised of the descendants of indigenous people taken to missions Santa Cruz and San Juan Bautista during Spanish colonization of the Central Coast, is today working hard to restore traditional stewardship practices on these lands and heal from historical trauma.

The land acknowledgement used at UC Santa Cruz was developed in partnership with the Amah Mutsun Tribal Band Chairman and the Amah Mutsun Relearning Program at the UCSC Arboretum .

MLA Style Guide, 8th & 9th Editions: Formatting Your Works Cited List

• Works Cited entries: What to Include
• Title of source
• Title of container
• Contributors
• Publication date
• Supplemental Elements
• Book with Personal Author(s)
• Book with Organization as Author
• Book with Editor(s)
• Parts of Books
• Government Publication
• Journal Article
• Magazine Article
• Multivolume Works
• Newspaper Article
• Other Formats
• Websites, Social Media, and Email
• About In-text Citations
• In-text Examples
• How to Paraphrase and Quote
• Citing Poetry
• Formatting Your MLA Paper
• Formatting Your Works Cited List
• MLA Annotated Bibliography
• MLA 9th Edition Quick Guide
• Submit Your Paper for MLA Style Review

The Works Cited page is the list of sources used in the research paper. It should be its own page at the end of the paper.

Center the title, "Works Cited" (without quotation marks), at the top of the page. If only one source was consulted, title the page "Work Cited".

Double space the entire list of sources.

Use hanging indention for each entry. Begin each entry flush with the left margin; indent all subsequent lines one-half inch.

Arrange entries in alphabetical order by the first term in each entry (the first author's last name or the title of the work when there is no author).

Continue with the numbering convention used throughout the paper by including your last name and the page number in the upper right-hand corner of the Works Cited page.

Hanging Indents

Each entry in your Works Cited list should have a hanging indent where the first line of the entry is closer to the left margin than all of the following lines. See how to create a hanging indent in Word or Word Online.

Sample Works Cited Page

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• Citing Sources

Citing Sources: What are citations and why should I use them?

What is a citation.

Citations are a way of giving credit when certain material in your work came from another source. It also gives your readers the information necessary to find that source again-- it provides an important roadmap to your research process. Whenever you use sources such as books, journals or websites in your research, you must give credit to the original author by citing the source. 

Why do researchers cite?

Scholarship is a conversation  and scholars use citations not only to  give credit  to original creators and thinkers, but also to  add strength and authority  to their own work.  By citing their sources, scholars are  placing their work in a specific context  to show where they “fit” within the larger conversation.  Citations are also a great way to  leave a trail  intended to help others who may want to explore the conversation or use the sources in their own work.

In short, citations

(1) give credit

(2) add strength and authority to your work

(3) place your work in a specific context

(4) leave a trail for other scholars

"Good citations should reveal your sources, not conceal them. They should honeslty reflect the research you conducted." (Lipson 4)

Lipson, Charles. "Why Cite?"  Cite Right: A Quick Guide to Citation Styles--MLA, APA, Chicago, the Sciences, Professions, and More . Chicago: U of Chicago, 2006. Print.

What does a citation look like?

Different subject disciplines call for citation information to be written in very specific order, capitalization, and punctuation. There are therefore many different style formats. Three popular citation formats are MLA Style (for humanities articles) and APA or Chicago (for social sciences articles).

MLA style (print journal article):  

Whisenant, Warren A. "How Women Have Fared as Interscholastic Athletic Administrators Since the Passage of Title IX." Sex Roles Vol. 49.3 (2003): 179-182.

APA style (print journal article):

Whisenant, W. A. (2003) How Women Have Fared as Interscholastic Athletic Administrators Since the Passage of Title IX. Sex Roles , 49 (3), 179-182.

Chicago style (print journal article):

Whisenant, Warren A. "How Women Have Fared as Interscholastic Athletic Administrators Since the Passage of Title IX." Sex Roles 49, no. 3 (2003): 179-182.

No matter which style you use, all citations require the same basic information:

• Author or Creator
• Container (e.g., Journal or magazine, website, edited book)
• Date of creation or publication
• Publisher 

You are most likely to have easy access to all of your citation information when you find it in the first place. Take note of this information up front, and it will be much easier to cite it effectively later.

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Home / Guides / Citation Guides / APA Format / APA Reference Page

How to Format an APA Reference Page

In APA, the “Works Cited” page is referred to as a “Reference List” or “Reference Page.” “Bibliography” also may be used interchangeably, even though there are some differences between the two.

If you are at the point in your article or research paper where you are looking up APA bibliography format, then congratulations! That means you’re almost done.

In this guide, you will learn how to successfully finish a paper by creating a properly formatted APA bibliography. More specifically, you will learn how to create a reference page . The guidelines presented here come from the 7 th edition of the APA’s Publication Manual .

A note on APA reference page style: In this guide, “bibliography” and “references” may be used interchangeably, even though there are some differences between the two. The most important thing is to use the label “References” when writing your paper since APA style recommends including a reference page.

Here’s a run-through of everything this page includes:

Difference between an APA bibliography and a reference page

What about annotated bibliographies, understanding apa reference page format, apa reference page formatting: alphabetizing by surname, q: what should not be on an apa reference page.

The difference between a bibliography and a reference page is a matter of scope. A bibliography usually includes all materials and sources that were used to write the paper. A reference page, on the other hand, only includes entries for works that were specifically cited in the text of the paper.

There are some cases in which a professor or journal might request an annotated bibliography . An annotated bibliography is basically a reference page that includes your comments and insights on each source.

An annotated bibliography can be a document all on its own, or part of a bigger document. That means creating an annotated bibliography by itself could be an assignment, or you may have to include one as part of your research paper, journal submission, or other project.

If you do need to add an APA annotated bibliography , it goes after the reference page on its own page, inside the appendices.

A properly formatted APA reference page begins on a new page, after the end of the text. It comes before any figures, tables, maps, or appendices. It’s double-spaced and features what’s called a hanging indent , where the first line of each reference is not indented, and the second line of each reference is indented 0.5 inches. The reference page is also labeled with a bold, center-justified, and capitalized “References.”

To summarize, the reference page should be:

• Placed on its own page, after the text but before any tables, figures, or appendices.
• In the same font as the rest of the paper.
• Double-spaced the whole way through (including individual references).
• Formatted with hanging indents (each line after the first line of every entry indented 0.5 inches).
• Labeled with a bold, center-justified, and capitalized “References.”

Note: You can use the paragraph function of your word processing program to apply the hanging indent.

Q: What font am I supposed to use for the reference page or bibliography?

The APA reference page/bibliography should be in the same font as the rest of your paper. However, APA Style does not actually call for one specific font. According to Section 2.19 of the Publication Manual , the main requirement is to choose a font that is readable and accessible to all users. Some of the recommended font options for APA style include:

• Sans serif fonts: Calibri (11pt), Arial (11pt), or Lucida (10pt).
• Serif fonts: Times New Roman (12pt), Georgia (11pt), or Normal/Computer Modern (10pt).

Q: What are the margins supposed to be for the reference page or bibliography?

Aside from the 0.5 inch hanging indent on the second line of each reference entry, you do not need to modify the margins of the reference page or bibliography. These should be the same as the rest of your paper, which according to APA is 1-inch margins on all sides of the page. This is the default margin setting for most computer word processors, so you probably won’t have to change anything.

Q: What information goes into an APA style reference page or bibliography?

An APA style reference page should include full citations for all the sources that were cited in your paper. This includes sources that were summarized, paraphrased, and directly quoted. Essentially, if you included an in-text citation in your paper, that source should also appear in your reference list. The reference list is organized in alphabetical order by author.

The formatting for reference list citations varies depending on the kind of source and the available information. But for most sources, your reference list entry will include the following:

• The last name(s) and initials of the author(s).
• The date the source was published (shown in parentheses).
• The title of the source in sentence case. The title should be in italics if the source stands on its own (like a book, webpage, or movie).
• The name of the periodical, database, or website if the source is an article from a magazine, journal, newspaper, etc. Names of periodicals are usually italicized; names of databases and websites usually are not.
• The publisher of the source and/or the URL where the source can be found.

Here are a few templates and examples for how common sources should be formatted in an APA style reference list. If your source is not found here, there is also a guide highlighting different APA citation examples .

Citing a Book

Author’s last name, Author’s first initial. Author’s middle initial. (Year of publication). Title of work . Publisher.

James, Henry. (2009). The ambassadors . Serenity Publishers.

Citing a Journal

Author’s last name, Author’s first initial. Author’s middle initial. (Year, Month Date published). Article title. Journal Name , Volume(Issue), page number(s). https://doi.org/ or URL (if available)

Jacoby, W. G. (1994). Public attitudes toward government spending. American Journal of Political Science , 38(2), 336-361. https://doi.org/10.2307/2111407

Citing a Website

Author’s last name, Author’s first initial. Author’s middle initial. (Year, Month Date published). Article title or page title . Site Name. URL

Limer, E. (2013, October 1). Heck yes! The first free wireless plan is finally here . Gizmodo. https://gizmodo.com/heck-yes-the-first-free-wireless-plan-is-finally-here

Next, let’s take a look at a real example of a properly formatted APA reference page to see how these pieces come together.

APA reference page example

Creating an APA reference page is actually a lot easier than creating a bibliography with other style guides. In fact, as long as you are aware of the formatting rules, the reference page practically writes itself as you go.

Below is an example reference page that follows the guidelines detailed above. EasyBib also has a guide featuring a complete APA style sample paper , including the reference page.

All APA citations included in the reference page should be ordered alphabetically, using the first word of the reference entry. In most cases, this is the author’s surname (or the surname of the author listed first, when dealing with citations for sources with multiple authors ). However, there are times when a reference entry might begin with a different element.

Creating an alphabetized reference page or bibliography might seem like a simple task. But when you start dealing with multiple authors and similar last names, it can actually get a little tricky. Fortunately, there are a few basic rules that can keep you on track.

The “nothing precedes something” rule

When the surnames of two or more authors begin with the same letters, the “nothing precedes something” rule is how to figure it out. Here is an example of how it works.

Imagine your reference page includes the authors Berg, M.S. and Bergman, H.D. The first four letters of each author are the same. The fifth letters are M and H respectively. Since H comes before M in the alphabet, you might assume that Bergman, H.D. should be listed first.

APA Style requires that “nothing precede something,” which means that Berg will appear before Bergman. Similarly, a James would automatically appear before a Jameson, and a Michaels before a Michaelson.

Disregard spaces and punctuation marks

If a surname has a hyphen, apostrophe, or other punctuation mark, it can be ignored for alphabetization purposes. Similarly, anything that appears inside of parentheses or brackets should be disregarded.

Ordering multiple works by the same author

It is not uncommon for a research paper to reference multiple books by the same author. If you have more than one reference entry by the same person, then the entries should be listed chronologically by year of publication.

If a reference entry has no year of publication available, then it should precede any entries that do have a date. Here’s an example of a properly alphabetized order for multiple entries from the same author:

Guzman, M.B. (n.d.).

Guzman, M.B. (2016).

Guzman, M.B. (2017).

Guzman, M.B. (2019).

Guzman, M.B. (in press).

“In press” papers do not yet have a year of publication associated with them. All “in press” sources are listed last, like the one shown above.

Ordering works with the same author and same date

If the same author has multiple entries with the same year of publication, you need to differentiate them with lowercase letters. Otherwise, the in-text citations in your paper will correspond to more than one reference page entry.

Same author and same year of publication

Here’s a look at how to use lowercase letters to differentiate between entries with the same author and same year of publication:

Guzman, M.B. (2020a).

Guzman, M.B. (2020b).

Guzman, M.B. (2020c).

These lowercase letters are assigned to make the in-text citations more specific. However, it does not change the fact that their year of publication is the same. If no month or day is available for any of the sources, then they should be ordered alphabetically using the title of the work.

When alphabetizing by title, ignore the words “A,” “An,”,and “The” if they’re the first word of the title.

Same author and same year of publication, with more specific dates

If more specific dates are provided, such as a month or day, then it becomes possible to order these entries chronologically.

Guzman, M.B. (2020b, April 2).

Guzman, M.B. (2020c, October 15).

Ordering authors with the same surname but different initials

Authors who share the same surname but have different first or middle names can be alphabetized by their first initial or second initial.

Guzman, R.L. (2015).

Ordering works with no listed author, or an anonymous author

If you have reference entries with no listed author, the first thing to double-check is whether or not there was a group author instead. Group authors can be businesses, task forces, nonprofit organizations, government agencies, etc.

If there is no individual author listed, then have another look at the source. If it is published on a government agency website, for instance, there is a good chance that the agency was the author of the work, and should be listed as such in the reference entry. You can read more about how to handle group authors in Section 9.11 of the Publication Manual .

What if the work is actually authored by “Anonymous”?

If the work you’re referencing actually has the word “Anonymous” listed as the author, then you can list it as the author and alphabetize it as if it were a real name. But this is only if the work is actually signed “Anonymous.”

What if there is no listed author and it’s definitely not a group author?

If you have confirmed that there is no individual or group author for the work, then you can use the work’s title as the author element in the reference entry. In any case where you’re using the work’s title to alphabetize, you should skip the words “A,” “An,” and “The.”

An APA reference page should not contain any of the following:

• The content of your paper (the reference page should start on its own page after the end of your paper).
• Entries for works for further reading or background information or entries for an epigraph from a famous person (the reference page should only include works that are referenced or quoted in your paper as part of your argument).
• Entries for personal communications such as emails, phone calls, text messages, etc. (since the reader would not be able to access them).
• Entries for whole websites, periodicals, etc. (If needed, the names of these can be mentioned within the body of your paper instead.)
• Entries for quotations from research participants (since they are part of your original research, they do not need to be included).

Published October 28, 2020.

APA Formatting Guide

APA Formatting

• Annotated Bibliography
• Block Quotes
• et al Usage
• In-text Citations
• Multiple Authors
• Paraphrasing
• Page Numbers
• Parenthetical Citations
• Reference Page
• Sample Paper
• APA 7 Updates
• View APA Guide

Citation Examples

• Book Chapter
• Journal Article
• Magazine Article
• Newspaper Article
• Website (no author)
• View all APA Examples

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The following rules will help you identify when to use DOIs and when to use URLs in references:

• Use a DOI wherever available, be it a print version or online version.
• For a print publication that does not have a DOI, do not add a DOI or URL (even if a URL is available).
• For an online publication, if both a DOI and URL are given, include only the DOI.
• For online publications that only have a URL (and no DOI), follow the below recommendations:
• Add a URL in the reference list entry for publications from websites (other than databases). Double check that the URL will work for readers.
• For publications from most academic research databases, which are easily accessible, do not include a URL or database information in the reference. In this case, the reference will be the same as the print version.
• For publications from databases that publish limited/proprietary work that would only be available in that database, include the database name and the URL. If the URL would require a login, include the URL for the database home page or login page instead of the URL for the work.
• If a URL will not work for the reader or is no longer accessible, follow the guidance for citing works with no source.

To format your APA references list, follow these recommendations:

• Begin the references on a new page. This page should be placed at the end of the paper.
• All sides of the paper should have a 1-inch margin.
• Set the heading as “References” in bold text and center it.
• Arrange the reference entries alphabetically according to the first item within the entries (usually the author surname or title).
•  Add a hanging indent of 0.5 inches (i.e., indent any line after the first line of a reference list entry).

See above for a visual example of a reference page and additional examples.

Special Cases

Multiple entries with the same author(s) are arranged by publication year. Entries with no dates first, then in chronological order. If the year published is also the same, a letter is added to the year and the entries are arranged alphabetically (after arrangement by year).

• Robin, M. T. (n.d.)
• Robin, M. T. (1987)
• Robin, M. T. (1989a)
• Robin, M. T. (1989b)

Single-author source and multi-author source that share one author. One-author entries are listed first even if the multi-author entries were published earlier.

• Dave, S. P., Jr. (2006)
• Dave, S. P., Jr., & Glyn, T. L. (2005)

For references with multiple authors that have the same first author but different subsequent authors, alphabetize the entries by the last name of the second author (or third if the first two authors are the same).

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Reference List: Textual Sources

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Basic Format for Books

Edited book, no author, edited book with an author or authors, a translation.

Note : When you cite a republished work, like the one above, in your text, it should appear with both dates: Plato (385-378/1989)

Edition Other Than the First

Article or chapter in an edited book.

Note : When you list the pages of the chapter or essay in parentheses after the book title, use "pp." before the numbers: (pp. 1-21). This abbreviation, however, does not appear before the page numbers in periodical references, except for newspapers. List any edition number in the same set of parentheses as the page numbers, separated by a comma: (2nd ed., pp. 66-72).

Multivolume Work

Articles in periodicals.

APA style dictates that authors are named with their last name followed by their initials; publication year goes between parentheses, followed by a period. The title of the article is in sentence-case, meaning only the first word and proper nouns in the title are capitalized. The periodical title is run in title case, and is followed by the volume number which, with the title, is also italicized. If a DOI has been assigned to the article that you are using, you should include this after the page numbers for the article. If no DOI has been assigned and you are accessing the periodical online, use the URL of the website from which you are retrieving the periodical.

Article in Print Journal

Note: APA 7 advises writers to include a DOI (if available), even when using the print source. The example above assumes no DOI is available.

Article in Electronic Journal

Note :  This content also appears on Reference List: Online Media .

As noted above, when citing an article in an electronic journal, include a DOI if one is associated with the article.

DOIs may not always be available. In these cases, use a URL. Many academic journals provide stable URLs that function similarly to DOIs. These are preferable to ordinary URLs copied and pasted from the browser's address bar.

Article in a Magazine

Article in a newspaper.

Burkholder’s work in social inequality cited in Scientific American

The work of Amanda Burkholder, Furman University assistant professor of psychology, is mentioned in a Scientific American article written by Melanie Killen, Burkholder’s Ph.D. advisor. In “The Science of Reducing Prejudice in Kids,” Killen describes her Developing Inclusive Youth intervention, which helps children think through and share their views about social exclusion, why it’s unfair and why it’s necessary to stand up against stereotypes and biases. Students in Burkholder’s lab investigate similar topics such as how children learn about the world, including intergroup relationships and social inequalities. Burkholder, who joined the faculty in 2022, also serves on the scientific advisory board for a grant that is testing an updated version of the Developing Inclusive Youth intervention.

Caterisano to be inducted into National Wrestling HOF

Ldoc captures media attention, erin hahn receives jim smart award.

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What we know about the increase in U.S. murders in 2020

The U.S. murder rate rose 30% between 2019 and 2020 – the largest single-year increase in more than a century, according to data published this month by the Centers for Disease Control and Prevention (CDC). The findings align with a separate tabulation of the nation’s murder rate published in September by the FBI.

The CDC tracks murders by analyzing information contained in death certificates. The FBI tallies murders by collecting information from thousands of law enforcement agencies across the country. Despite their different methodologies, both sources point to a sharp rise in the U.S. murder rate during the pandemic year of 2020, even as the rate itself remained well below the level of earlier decades.

Below are some key takeaways from the two new sets of government data.

This analysis examines the increase in the U.S. murder rate between 2019 and 2020. It relies on murder statistics from the Centers for Disease Control and Prevention (CDC) and the FBI. In this analysis, the terms “murder” and “homicide” are used interchangeably.

The CDC’s murder data is based on information contained in death certificates and published in two online databases. Data for 2020 comes from the Vital Statistics Rapid Release mortality dashboard , while data for earlier years comes from the WONDER database . Data for 2020 is provisional; data for earlier years is final. All murder rates are adjusted for age. Provisional data for 2020 was not available for New Hampshire and Vermont at the time of this analysis. Historical data on nationwide murder rates is not directly comparable across the 1968-2019 time period due to minor definitional changes made by the CDC in accordance with the World Health Organization’s International Classification of Disease.

The FBI’s murder data is based on information submitted to the agency by local police departments around the country and published on the Crime Data Explorer website . The FBI data is incomplete because not all agencies participate in the voluntary program every year and some of those that do participate do not provide full data. The FBI’s figures include nonnegligent manslaughters as well as murders.

The public opinion data cited here comes from Pew Research Center surveys conducted in 2021 and 2020. Additional information about the sample sizes, field dates and methodologies of these surveys can be found in the links included in this analysis.

The year-over-year increase in the U.S. murder rate in 2020 was the largest since at least 1905 – and possibly ever, according to provisional data from the CDC . (Final data is not expected to differ much from the provisional data.) There were 7.8 homicides for every 100,000 people in the United States in 2020, up from six homicides per 100,000 people the year before. The rise in the nation’s murder rate last year far exceeded the 20% increase measured in 2001, which was driven by the terrorist attacks of Sept. 11.

Last year’s increase in the murder rate may have even exceeded the one measured in 1905, according to Dr. Robert Anderson, who oversees mortality statistics for the CDC’s National Center for Health Statistics. Anderson noted earlier this month that the 1905 increase was at least partly due to more states submitting data to the national death registry, as opposed to an actual rise in murders.

The CDC has not yet published the total number of murders in the U.S. in 2020. But according to the FBI, there were 21,570 murders last year, up 29% from 16,669 in 2019 and the highest annual total since 1995. The FBI figures include nonnegligent homicides as well as murders, but the agency’s figures are incomplete because not all law enforcement agencies submit data.

Most states saw their murder rates go up between 2019 and 2020. At least eight states saw their murder rates rise by 40% or more last year, with the largest percentage increases in Montana (+84%), South Dakota (+81%), Delaware (+62%) and Kentucky (+61%), according to the CDC. Higher-than-average increases also occurred in several heavily populated states, including New York (+47%), Pennsylvania (+39%), Illinois (+38%), Ohio (+38%) and California (+36%). The CDC does not yet have full-year data for New Hampshire and Vermont.

Firearms were involved in 77% of murders for which data was available in 2020, up from 73% in 2019, according to the FBI. As has long been the case , handguns were involved in a majority of gun murders, while rifles and shotguns accounted for much smaller proportions. A sizable share of gun murders in 2020 involved an unknown type of firearm.

The percentage of murders that were solved – known as the “clearance rate” – declined from 61% in 2019 to 54% in 2020, according to the FBI. The murder clearance rate refers to the share of homicides that are closed through the arrest, charging and referral of a suspect for prosecution, or due to “exceptional” circumstances such as the death of a suspect or a victim’s refusal to cooperate with a prosecution. Clearance rates are calculated based on the number of offenses closed in a given calendar year, even if the crime may have occurred in a prior year.

It is not yet clear why murders rose dramatically in 2020. Experts have pointed to a variety of potential causes , including the economic and societal changes brought on by the coronavirus pandemic and changes in police-community relations after the murder of George Floyd in Minnesota last year. But the exact reasons remain unclear.

The FBI data, at least, shows that murder wasn’t the only form of violent crime to go up last year. The rate of aggravated assault rose nearly 12% between 2019 and 2020. And since aggravated assault is by far the most common type of violent crime tracked by the FBI, the overall violent crime rate in the U.S. also increased in 2020, by about 5%. Two other kinds of violent crime tracked by the FBI – rape and robbery – declined in 2020.

Despite rising sharply in 2020, the U.S. murder rate remains below the levels of the early 1990s. The 2020 homicide rate of 7.8 homicides per 100,000 people was 22% below the rate of 1991 (10 homicides per 100,000 people) and far below the rates recorded in much of the 1970s and 1980s, according to the CDC. As is the case for violent and property crime rates more broadly , the U.S. murder rate has generally trended downward in recent decades, though 2020 was an obvious exception.

Americans remain far less likely to die from murder than from other causes, including from suicide and drug overdose. The U.S. murder rate in 2020 was 42% lower than the suicide rate (13.5 deaths per 100,000 people) and 71% below the mortality rate for drug overdose (27.1 deaths per 100,000 people, as of the third quarter of 2020), the CDC data shows. As was the case with murders, drug overdoses increased sharply in 2020 .

That’s not to say that Americans aren’t concerned about violent crime. In a July 2021 Pew Research Center survey, 61% of U.S. adults said violent crime is a very big problem in the country today – up from 41% in June 2020 and the highest percentage measured since at least the fall of 2018. In the July poll, Americans were more likely to describe violent crime as a very big problem than to say the same thing about five other issues asked about in the survey: the federal budget deficit (50% said this was a very big problem), climate change (47%), racism (45%), economic inequality (44%) and illegal immigration (43%).

Since June 2020, Americans have also become more supportive of increasing local police funding in their communities . In a separate Center survey conducted in September, 47% of U.S. adults said they favored an increase in funding for police in their area, up from 31% last June. Support for reducing local police funding declined from 25% to 15%.

• Criminal Justice

John Gramlich is an associate director at Pew Research Center

What the data says about crime in the U.S.

8 facts about black lives matter, #blacklivesmatter turns 10, support for the black lives matter movement has dropped considerably from its peak in 2020, fewer than 1% of federal criminal defendants were acquitted in 2022, most popular.

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Wayback Machine is an archive of websites that lives on the Internet Archive ’s site, so you would treat the Internet Archive as the container of the archived web page you view. Include the archived web page’s information in container 1 of your entry. In container 2, include Internet Archive in the Title of Container element and the URL that Wayback Machine provides for the archived page in the Location element:

Collazo, Julie Schwietert. “Cuban Quimbombo (Afro-Cuban Okra).” The Latin Kitchen , 25 Feb. 2014. Internet Archive , web.archive.org/web/20180324130552/http:// thelatinkitchen.com:80/blogs/kitchen/cuban-quimbombo-afro-cuban-okra.

For information on citing other types of archived works, see our posts on citing artifacts in digital archives and citing materials in physical archives and collections . 

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Title: research on robot path planning based on reinforcement learning.

Abstract: This project has conducted research on robot path planning based on Visual SLAM. The main work of this project is as follows: (1) Construction of Visual SLAM system. Research has been conducted on the basic architecture of Visual SLAM. A Visual SLAM system is developed based on ORB-SLAM3 system, which can conduct dense point cloud mapping. (2) The map suitable for two-dimensional path planning is obtained through map conversion. This part converts the dense point cloud map obtained by Visual SLAM system into an octomap and then performs projection transformation to the grid map. The map conversion converts the dense point cloud map containing a large amount of redundant map information into an extremely lightweight grid map suitable for path planning. (3) Research on path planning algorithm based on reinforcement learning. This project has conducted experimental comparisons between the Q-learning algorithm, the DQN algorithm, and the SARSA algorithm, and found that DQN is the algorithm with the fastest convergence and best performance in high-dimensional complex environments. This project has conducted experimental verification of the Visual SLAM system in a simulation environment. The experimental results obtained based on open-source dataset and self-made dataset prove the feasibility and effectiveness of the designed Visual SLAM system. At the same time, this project has also conducted comparative experiments on the three reinforcement learning algorithms under the same experimental condition to obtain the optimal algorithm under the experimental condition.

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The mechanism of water oxidation using transition metal-based heterogeneous electrocatalysts.

* Corresponding authors

a Key Laboratory of Applied Surface and Colloid Chemistry, Ministry of Education, School of Chemistry and Chemical Engineering, Shaanxi Normal University, Xi’an 710119, P. R. China E-mail: [email protected] , [email protected] , [email protected]

The water oxidation reaction, a crucial process for solar energy conversion, has garnered significant research attention. Achieving efficient energy conversion requires the development of cost-effective and durable water oxidation catalysts. To design effective catalysts, it is essential to have a fundamental understanding of the reaction mechanisms. This review presents a comprehensive overview of recent advancements in the understanding of the mechanisms of water oxidation using transition metal-based heterogeneous electrocatalysts, including Mn, Fe, Co, Ni, and Cu-based catalysts. It highlights the catalytic mechanisms of different transition metals and emphasizes the importance of monitoring of key intermediates to explore the reaction pathway. In addition, advanced techniques for physical characterization of water oxidation intermediates are also introduced, for the purpose of providing information for establishing reliable methodologies in water oxidation research. The study of transition metal-based water oxidation electrocatalysts is instrumental in providing novel insights into understanding both natural and artificial energy conversion processes.

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S. Yang, X. Liu, S. Li, W. Yuan, L. Yang, T. Wang, H. Zheng, R. Cao and W. Zhang, Chem. Soc. Rev. , 2024, Advance Article , DOI: 10.1039/D3CS01031G

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