MLA

Hughes, Langston, 1902-1967. New York Public Library: General. Box 120, folder 2274-2276. 1945-60. https://collections.library.yale.edu/catalog/32383417.

APA, 6th edition

Hughes, Langston, 1902-1967. (["Box 120, folder 2274-2276"])(1945-60)[New York Public Library: General]. https://collections.library.yale.edu/catalog/32383417.