What is a Version?
Often works are published in different versions. Books are often published in versions called editions. Examples of versions include:
An e-book—that is, a book that lacks a URL and that you use software to read on a personal device or computer—is considered a version according to the MLA Handbook’s template of core elements:
MLA Handbook. 8th ed., e-book, Modern Language Association of America, 2016.
If you know the type of e-book you consulted (e.g., Kindle, EPUB), specify it instead of “e-book”:
MLA Handbook. 8th ed., Kindle ed., Modern Language Association of America, 2016.
When citing an e-book in your text, avoid using device-specific numbering systems. See section 3.3.3 for suggestions on alternative ways to identify the parts of a work.