Chaffe-Stengel, P., & Stengel, D. (2012). Working with sample data: Exploration and inference. Business Expert Press. https://doi.org/10.4128/9781606492147
What is a DOI?
Some library databases, such as Academic Search Ultimate and APA PsycInfo, list a Digital Object Identifier (DOI) for individual e-books. A DOI is a unique identifying number for an e-book. In the database record for an e-book, you will see an element that looks like this, which you should include at the end of your APA reference, preceded by "https://doi.org/":
This link will allow a reader to link to doi.org for more information about the e-book.
Burgess, R. (2019). Rethinking global health: Frameworks of power. Routledge.
Gladwell, M. (2008). Outliers: The story of success. Little, Brown and Company. https://www.amazon.com/Outliers-Story-Success-Malcolm-Gladwell-ebook/dp/B001ANYDAO/ref=tmm_kin_swatch_0?_encoding=UTF8&qid=&sr=
It is not necessary to note that it is an e-book if the content is the same as the print version.
Seton, E. T. (1911). The Arctic prairies: A canoe-journey of 2,000 miles in search of the caribou. Charles Scribner's Sons. http://www.gutenberg.org/etext/6818
Quina, K., & Kanarian, M. A. (1988). Continuing education. In P. Bronstein & K. Quina (Eds.), Teaching a psychology of people: Resources for gender and sociocultural awareness (pp. 200-208). American Psychological Association.
When using just a chapter from a book the same rules apply regarding DOI or no DOI as listed above, depending on where the book was retrieved.
See Publication Manual, 10.2