MLA

Hughes, Langston, 1902-1967. Lincoln University (Mo.). Box 103, folder 1955. 1942-64. https://collections.library.yale.edu/catalog/32586087.

APA, 6th edition

Hughes, Langston, 1902-1967. (["Box 103, folder 1955"])(1942-64)[Lincoln University (Mo.)]. https://collections.library.yale.edu/catalog/32586087.