MLA

Hughes, Langston, 1902-1967. Reid, Victor. Box 136, folder 2527. 1947-49. https://collections.library.yale.edu/catalog/32468736.

APA, 6th edition

Hughes, Langston, 1902-1967. (["Box 136, folder 2527"])(1947-49)[Reid, Victor]. https://collections.library.yale.edu/catalog/32468736.