MLA

Hughes, Langston, 1902-1967. "Final Shooting Script", typescript mimeograph. Box 367, folder 5925. 1939 Apr 14. https://collections.library.yale.edu/catalog/17034078.

APA, 6th edition

Hughes, Langston, 1902-1967. (["Box 367, folder 5925"])(1939 Apr 14)["Final Shooting Script", typescript mimeograph]. https://collections.library.yale.edu/catalog/17034078.