Interview 18
MLA
Sartre, Jean-Paul, 1905-1980. Interview 18. Box 1, folder 17. 1971 Dec 10. https://collections.library.yale.edu/catalog/16538171.
APA, 6th edition
Sartre, Jean-Paul, 1905-1980. (["Box 1, folder 17"])(1971 Dec 10)[Interview 18]. https://collections.library.yale.edu/catalog/16538171.