National Association for the Advancement of Colored People: National office (New York City)
MLA
Hughes, Langston, 1902-1967. National Association for the Advancement of Colored People: National office (New York City). Box 118, folder 2234-2236. 1941-66, n.d.. https://collections.library.yale.edu/catalog/32457693.
APA, 6th edition
Hughes, Langston, 1902-1967. (["Box 118, folder 2234-2236"])(1941-66, n.d.)[National Association for the Advancement of Colored People: National office (New York City)]. https://collections.library.yale.edu/catalog/32457693.