MLA

Hughes, Langston, 1902-1967. Nairobi interview: notes. Box 485, folder 12312. n.d.. https://collections.library.yale.edu/catalog/17034188.

APA, 6th edition

Hughes, Langston, 1902-1967. (["Box 485, folder 12312"])(n.d.)[Nairobi interview: notes]. https://collections.library.yale.edu/catalog/17034188.