APA Style (7th ed.)
If a work has two authors, insert an ampersand (&) between the authors’ names in the parenthetical citation, and spell out “and” in the running text to format a narrative citation. Cite both authors every time the resource is referenced (American Psychological Association, 2020, p.266). For example:
- Parenthetical citation: (Kouzes & Posner, 2017)
- Narrative citation: Kouzes and Posner (2017)
Reference
American Psychological Association. (2020). Publication manual of the American Psychological Association (7th ed.). https://doi.org/10.1037/0000165-000