Armstrong, S. C. (Samuel Chapman)
MLA
Hughes, Langston, 1902-1967. Armstrong, S. C. (Samuel Chapman). Box 19, folder 232. 1875-1978. https://collections.library.yale.edu/catalog/16207013.
APA, 6th edition
Hughes, Langston, 1902-1967. (["Box 19, folder 232"])(1875-1978)[Armstrong, S. C. (Samuel Chapman)]. https://collections.library.yale.edu/catalog/16207013.