MLA

Hughes, Langston, 1902-1967. Drafts, holograph, typescript and carbon, corrected. Box 316a, folder 5157-5159. 1948-49. https://collections.library.yale.edu/catalog/31917980.

APA, 6th edition

Hughes, Langston, 1902-1967. (["Box 316a, folder 5157-5159"])(1948-49)[Drafts, holograph, typescript and carbon, corrected]. https://collections.library.yale.edu/catalog/31917980.