APA Citation Guide (7th edition) : Encyclopedias & Dictionaries

Authors/Editors

If an encyclopedia or dictionary entry does not indicate a specific author or co-authors, begin the citation with a group author such as Merriam-Webster or American Psychological Association, followed by the year of publication in round brackets.

Titles

Capitalize the first letter of the first word of the title of the entry and the title of the encyclopedia or dictionary.

Capitalize the first letter of proper names in titles, such as names of places or people. Example: Canada

Publication Information for Online Encyclopedias and Dictonaries

Include the publisher name for an encyclopedia or dictionary where clearly identified, just as with a book or ebook. If the author and publisher are the same, omit the publisher element.

Some electronic content is assigned a unique number called a Digital Object Identifier (DOI). If a DOI is provided for an encyclopedia or dictionary, include it after the name of the encyclopedia or dictionary of the entry and edition beginning with "https:"

You do not need to put a period after a DOI number.

If you accessed the encyclopedia or dictionary through a website, provide the URL. If the encyclopedia or dictionary provides stable archived versions, link to the latest one without "retrieved from"; no statement of the retrieval date is necessary in this case. A statement of the retrieval date should be provided for any web pages that are dynamic and not archived. When in doubt, provide a retrieval date to help the reader in case the entry you use is updated between the time you read it and the time your reader looks at it.

In-Text Citation - Page Numbers

Page numbers may not be available for an online dictionary or encyclopedia entry. Here are some options if you have no page numbers and you are quoting directly:

Count the paragraphs, and use that number where you'd normally put the page number. Put the word "para." in front of it. Example: (Smith, 2012, para. 3). This example refers to the third paragraph in the entry. 

If the entry has section headings, you can use those. Encyclopedia entries often have section headings. Enter the section heading name, followed by the word "section" and then the number of the paragraph within that section. Example: (Smith, 2012, Climate section, para. 2). This example refers to the second paragraph under the Climate section of the entry.

If there is only one paragraph and no headings, as may be the case for many dictionary entries, skip the page/paragraph/section information and give the author's name and date only. Example: (Smith, 2012)

Note: All citations should be double spaced and have a hanging indent in a Reference List.

A "hanging indent" means that each subsequent line after the first line of your citation should be indented by 0.5 inches.

Author's Last Name, First Initial. Second Initial if Given. (Year of Publication). Title of entry. In Editor's First Initial. Second Initial if given. Last Name (Ed.), Name of encyclopedia or dictionary (edition if given and is not first edition, volume number if there is more than one, page range). Publisher Name.

Author's Last Name, First Initial. Second Initial if Given. (Year of Publication). Title of entry. In Editor's First Initial. Second Initial if given. Last Name (Ed.), Name of encyclopedia or dictionary (edition if given and is not first edition). https://doi number

Author's Last Name, First Initial. Second Initial if Given. (Year of Publication).Title of entry. In Editor's First Initial. Second Initial if given. Last Name (Ed.), Name of encyclopedia or dictionary (edition if given and is not first edition). Retrieved date from URL

Name of Group Author. (Year of Publication). Title of entry. In Editor's First Initial. Second Initial if given. Last Name (Ed.), Name of encyclopedia or dictionary (edition if given and is not first edition). Retrieved from date URL

Title of entry. (Year article was edited, Month Day). In Wikipedia. URL for archived version of the article

Note: To find and cite the latest archived version, select "view history" in the Wikipedia entry and choose the most recent date.    

Wikipedia may not be considered an acceptable source for a college or university assignment. Be sure to evaluate the content carefully and check your assignment.

Author's Last Name, First Initial. Second Initial if Given. (Year of Publication). Title of entry. In Editor's First Initial. Second Initial if given. Last Name (Ed.), Name of encyclopedia or dictionary (Volume number, pp. first page of entry-last page of entry). Publisher Name often shortened.

Name of Group Author. (Year of Publication). Title of entry. In Editor's First Initial. Second Initial if given. Last Name (Ed.), Name of encyclopedia or dictionary (Volume number if any, pp. first page of entry-last page of entry or p. page number for one page entry). Publisher Name often shortened.