MLA

Hughes, Langston, 1902-1967. Hughes, Langston. Box 6 (Oversize), folder 70-71. 1924-1942. https://collections.library.yale.edu/catalog/16198518.

APA, 6th edition

Hughes, Langston, 1902-1967. (["Box 6 (Oversize), folder 70-71"])(1924-1942)[Hughes, Langston]. https://collections.library.yale.edu/catalog/16198518.