Many citation styles require a URL or DOI for e-Book citations. Below are examples of APA and MLA eBook citation styles, along with links to Chicago and AMA styles.
Note that APA style requires you to add the type of e-device, where you retrieved the eBook, and the URL or doi.
De Huff, E. W. (n.d.). Taytay’s tales: Traditional Pueblo Indian tales. Retrieved from
Stoker, B. (1897). Dracula [Kindle DX version]. Retrieved from Amazon.com
These examples come from Purdue OWL: APA Formatting and Style Guide
You can use the style as you would for citing a print book and then just add the additional information to indicate its electronic origin and when you accessed it, as shown below.
Author or Editor’s Last Name, First Name. Title of Book [put in quotes if part of a book].
Title of the Website. Editor of website [if given]. Publisher or sponsor of site [or N.p. if not available],
Date of electronic publication [or N.d. if not available]. Medium [e.g., Web]. Day Month year of access.
Wilde, Oscar. The Picture of Dorian Gray. Project Gutenberg. N.p. N.d. EPUB.
Downloaded March 25, 2011.
These examples are from the MLA Handbook of Writers of Research Papers, 7th ed., section 5.6.2, "A work cited on the web with print publication data"
Find information on citing eBooks in Chicago and AMA below: