National Institute of Arts and Letters
MLA
Hughes, Langston, 1902-1967. National Institute of Arts and Letters. Box 118, folder 2243-2244. 1947-66, n.d.. https://collections.library.yale.edu/catalog/32458203.
APA, 6th edition
Hughes, Langston, 1902-1967. (["Box 118, folder 2243-2244"])(1947-66, n.d.)[National Institute of Arts and Letters]. https://collections.library.yale.edu/catalog/32458203.