MLA

Hughes, Langston, 1902-1967. Huiswood, Hermie Dumont. Box 469, folder 11524. 1964 Oct 8. https://collections.library.yale.edu/catalog/16191176.

APA, 6th edition

Hughes, Langston, 1902-1967. (["Box 469, folder 11524"])(1964 Oct 8)[Huiswood, Hermie Dumont]. https://collections.library.yale.edu/catalog/16191176.