Often, in APA, you will have to combine multiple examples to make a correct citation. So for example, if you have an eBook that also has a specific edition, combine both of those examples, etc.
|Key Elements||Chapter or Section|
|One Author||Reference Entry|
|Corporate Author or Organization||Entire Edited Book|
|Two-Seven Authors||Specific Edition|
|Eight or More Authors||Specific Volume|
Include the author's surname and then first and middle initial.
Put the organization's full name in the author position.
List the authors in the order they are listed on the title page. Use the ampersand (&) rather than the word "and."
List the first six authors, add an ellipses (...), and list the last author.
At the end, include the DOI. Note that as of March 2017, CrossRef and APA recommend that DOIs be formatted as such: https://doi.org/10.xxxx/xxxxx with no period at the end. But DOIs starting with http://dx.doi.org, or with just doi:10.xxxx/xxxxx, will also continue to work -- the https: simply makes it more secure and easier to be recognized as a functioning link.
If there is no DOI, include the ebook's URL address if it is a stable URL.
At the end, use the database homepage URL. If you have included the DOI, do not include the URL.
After the publication information, include the type of e-reader you used and the website or software you used to retrieved the book.
If you are citing a specific chapter or section of an edited book, list the author of the section first. Include information such as page numbers, edition and volume numbers after the title of the book.
Begin with the author of the entry, not the author or editor of the book.
Begin with the entry title.
Put the editor in the author position followed by (Ed.).
Include edition in parentheses after the title. Cite the edition as it is printed on the title page (2nd ed., Rev. ed., 2010 ed., etc.)
Include the volume used in parentheses after the title.
After the title, include the format ("Master's thesis"), database or URL, and the accession number.