MLA

Hughes, Langston, 1902-1967. Bennett, Wycliffe S.. Box 14, folder 319. 1948-53, n.d.. https://collections.library.yale.edu/catalog/16998732.

APA, 6th edition

Hughes, Langston, 1902-1967. (["Box 14, folder 319"])(1948-53, n.d.)[Bennett, Wycliffe S.]. https://collections.library.yale.edu/catalog/16998732.