APA Style Guide (7th Edition)
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This print copy of APA's official publication lays out every aspect of APA style formatting. We have copies at every campus!
We also have eBooks, like this online guide that can be accessed anywhere through our library!
¡Incluso hay una guía APA en español disponible en línea!
References page: The basics
For every in-text citation that you include in your assignment, you need to have a corresponding full citation on the References page. Similarly, every citation entry on your References page should represent at least one in-text citation. It is easiest to collect the full citation information for every resource that you find while doing your research, then drop the ones that you use into the References page as you use information from them in your narrative, as it can be very challenging if you wait to build your full citations while writing your paper!
- Basic format of page
- Begin the Reference list on a new page immediately after the body of your text. It is the last page in your paper unless you have appendices or an index.
- The word “References” in bold is centered at the top of the page.
- Double space the entire list.
- Each entry provides Author, Date, Title, and Source of the work being cited. See the details section below for more information!
- Entries are ordered alphabetically by Author.
- The first line of each entry is left justified with every subsequent line of the entry indented by 1/2".
Visit Purdue's OWL to see a sample APA paper including a References page; another example to help you visualize the format for a References page is shown here in a graphic by Jennifer Betts of Bibliography.com (2021):
References page: The details
A full citation for the References page of an APA work will include 4 basic elements separated with periods: Author. (Date). Title. Source. For additional information, the APA also a concise guide for full citations of journal articles, books, and book chapters, as well as an extensive list of example reference citations for various circumstances.
- Author may be a person, many people, or an organization.
- Basic format is Last, F. M. = “Lastname, First initial. Middle initial.”
- Example: Smythe, G. B. (Date). Title. Source.
- International Association of Smythe Families. (Date). Title. Source.
- Every author of a work is listed in the Reference citation using the basic format, separated by a comma between each author and with an ampersand (“&” symbol) before the last author’s name; you must list the first 20 authors this way, but if there are more than 20 authors, you show the first 20 (with no ampersand) followed by an ellipse (“…” symbol). Author names are shown in the same order as they appear in the publication.
- Example: Smythe, G. B. & Jonas, L. (Date). Title. Source.
- Example: Smythe, G., Smythe, L., Smythe, N. & Smythe, R. (Date). Title. Source.
- Example: Author. (2021a). Title. Source.
- Use the title of the work in place of an unknown Author
- Example: Yearbook of the International Association of Smythe Families. (Date). Source.
- Basic format is to place the Date in parentheses with a period after the closing bracket.
- Example: Author. (2021). Title. Source.
- Use the copyright year.
- Example: Author. (2021). Title. Source.
- Use the date from the Journal volume in which article appears, even if it's different than the copyright year. Include only the year for the Date element; the full date of the journal is part of the Source element.
- Example: Author. (2021). Title. Source.
- Do not assume the copyright date from the site's footer applies to the content that you are citing!
- If you can find the date the content was posted or updated, use that date, otherwise treat the content as having no date (as specified below).
- Example: Author. (2021, January 1). Title. URLincludinghttp://
- Example with no date, retrieval date included: Author. (n.d.). Title. Source. Retrieved January 1, 2021, from URLincludinghttp://
- Use the month, day, or season along with the year
- Basic format: (year, month/day). Or (year, season).
- Example: Author. (2021, Spring/Summer). Title. Source.
- Example: Author. (2021, January 1). Title. Source.
- Include a complete date when possible; if you can't find all of the date elements for the resource type, include as much information in the date element as you can find. If there is absolutely no date associated with the resource, then you use an abbreviation for "no date" in place of the date element. Use lower case letters with a period behind each letter and no spaces: (n.d.).
- Title for parts of a work.
- Use the title of the article or chapter as the Title element; the title of the whole work is included in the Source.
- Includes journal and Newspaper articles, book chapters, etc.
- Basic format is to use normal text (no quotes, italics, etc.) expressed in sentence case (i.e. only capitalize the first word, the first word after a colon or dash, and proper nouns).
- Includes books, reports, etc.
- Basic format is to italicize the Title and to use sentence case (i.e. only capitalize the first word, the first word after a colon or dash, and proper nouns).
- Use the title of the work is the Title element.
- Example: Author. (Date). This is the title: This is the subtitle. Source.
- Example: Author. (Date). This is the title (2 nd ed., Vol. 7). Source.
- Basic format of the Source includes one or two parts depending on whether the work is accessed digitally.
- The first part is a necessary element for all Sources; this is the publication information of the book (publisher) or the periodical (i.e. name of journal, volume and issue numbers, and page range of the article).
- The second part, required when the work was accessed digitally, is the URL (web address or permalink as appropriate) or its DOI (Digital Object Identifier) which is a unique id permanently assigned to that object.
- If the Title was used in place of the Author element, you skip the Title element.
- If you cited part of a book for the Title (e.g. a book chapter or encyclopedia entry), the whole work is the Source.
- If the resource has an editor, the Source entry will have the include the editor’s name/s, the Source’s italicized title, and the page range for the part that you cited in parentheses, followed by a period, then the name of the publisher’s name as it’s shown in the work. Finish with the URL/DOI if available.
- Example: Author. (Date). Title. In F. M. Last (Ed.), This is the title for the whole book (pp. 101-142). Publisher. DOIorURLincludinghttp://
- Example: Author. (Date). Title. In F. M. Last and F. M. Last (Eds.), This is the title for the whole book (p. 474). Publisher. DOIorURLincludinghttp://
- If the editor’s name/s have already been used in the Author field, don’t repeat them in the Source; use “In This is the title…).
- If the identifying information for the work has already appeared in the Title of the citation entry, there’s no need to repeat it in the Source. The Source portion of the citation for a whole work therefore includes only the publisher and the URL or DOI for the work.
- Example: Author. (Date). Title of the whole work. Publisher. DOIorURLincludinghttp://
