MLA

Hughes, Langston, 1902-1967. Draft, typescript, carbon. Box 375, folder 6210. ca. 1937-38. https://collections.library.yale.edu/catalog/16536581.

APA, 6th edition

Hughes, Langston, 1902-1967. (["Box 375, folder 6210"])(ca. 1937-38)[Draft, typescript, carbon]. https://collections.library.yale.edu/catalog/16536581.