MLA

Hughes, Langston, 1902-1967. Hunter, Kristin. Box 82, folder 1581. 1967. https://collections.library.yale.edu/catalog/33087851.

APA, 6th edition

Hughes, Langston, 1902-1967. (["Box 82, folder 1581"])(1967)[Hunter, Kristin]. https://collections.library.yale.edu/catalog/33087851.