Bolivar, William C.
MLA
Hughes, Langston, 1902-1967. Bolivar, William C.. Box 19, folder 238. 1875-1978. https://collections.library.yale.edu/catalog/16207019.
APA, 6th edition
Hughes, Langston, 1902-1967. (["Box 19, folder 238"])(1875-1978)[Bolivar, William C.]. https://collections.library.yale.edu/catalog/16207019.