References for books contain four elements: author, date, book title, and publisher name. If the book has a DOI or a URL, you should include that as well. These elements can usually be found on the title page and/or the copyright page. Here is an example that contains all four elements:
This is how these four elements would look in a correctly formatted APA book citation:
The following sections provide more detail about each element.
Type the name of the author in inverted (last name first) format.
If an article has 2-20 authors, provide all of the authors' names in inverted format, with an ampersand (&) before the last author's name.
Type the copyright year of the book in parentheses, followed by a period and a space.
Capitalize the first letter of the first word of the title. If there is a sub-title, which usually appears after a colon, capitalize the first letter of the first word in the sub-title. Format the entire title in italics. Type a period at the end.
If there is an edition number, add it after the last word in the title, but before the period, and place in parentheses. The edition number should not be in italics.
Capitalize all proper nouns, e.g. Vermont, if they are in the title regardless of their position.
Type the name of the publisher exactly as you see it in the book, followed by a period. Do not include the publisher's location. Do not put the publisher's name in italics.