What is a DOI in an APA reference list entry?

A DOI in an APA reference list entry is a string of numbers and letters that has been assigned to an article or book. It’s also a hyperlink that readers can follow to see more publication details.

“DOI” is an acronym that stands for “Digital Object Identifier.” Almost every scholarly source has a DOI, even books and journal articles that were written before the DOI system started.

The DOI goes at the end of the reference list entry, like this example for a book in APA.

APA book reference entry example
Lengua, L. J., & Gartstein, M. A. (2024). Parenting with temperament in mind: Navigating your child’s strengths. American Psychological Association. https://doi.org/1.1037/0000407-000

QuillBot’s free APA Citation Generator can help you create reference list entries with DOIs. QuillBot’s writing pad online can help you keep track of all relevant source information to ensure your citations are accurate.