MLA

Hughes, Langston, 1902-1967. Book jackets. Box 488, folder 12388. ca. 1950-65. https://collections.library.yale.edu/catalog/2004883.

APA, 6th edition

Hughes, Langston, 1902-1967. (["Box 488, folder 12388"])(ca. 1950-65)[Book jackets]. https://collections.library.yale.edu/catalog/2004883.