MLA

Hughes, Langston, 1902-1967. Replansky, Naomi. Box 136, folder 2530. 1942 May 16. https://collections.library.yale.edu/catalog/32468778.

APA, 6th edition

Hughes, Langston, 1902-1967. (["Box 136, folder 2530"])(1942 May 16)[Replansky, Naomi]. https://collections.library.yale.edu/catalog/32468778.