MLA

Sartre, Jean-Paul, 1905-1980. Interview 23. Box 2, folder 22. 1972 Mar 24. https://collections.library.yale.edu/catalog/16538176.

APA, 6th edition

Sartre, Jean-Paul, 1905-1980. (["Box 2, folder 22"])(1972 Mar 24)[Interview 23]. https://collections.library.yale.edu/catalog/16538176.