Authors' League of America, Inc.
MLA
Hughes, Langston, 1902-1967. Authors' League of America, Inc.. Box 9, folder 213-216. 1931-67. https://collections.library.yale.edu/catalog/12206832.
APA, 6th edition
Hughes, Langston, 1902-1967. (["Box 9, folder 213-216"])(1931-67)[Authors' League of America, Inc.]. https://collections.library.yale.edu/catalog/12206832.