This APA 7 guide is based with permission on the APA Style: New 7th Edition guide from Northwest Technical College.
You don't need to put interviews you conduct, or other personal communications (email, chat, text message) on your References page. You only need to include an in-text citation in the body of your paper.
Use this format for the in-text citation:
(B. Mars, personal communication, June 10, 2019).
If you are citing a published interview, cite it on your References page according to where you found it (magazine, article in a database, web page, etc.).