MLA

Hughes, Langston, 1902-1967. Tarry, Ellen. Box 17, folder 213. 1875-1978. https://collections.library.yale.edu/catalog/16753213.

APA, 6th edition

Hughes, Langston, 1902-1967. (["Box 17, folder 213"])(1875-1978)[Tarry, Ellen]. https://collections.library.yale.edu/catalog/16753213.