MLA

Toomer, Jean, 1894-1967. "America 1924": typescript. Box 48, folder 1016. 1924. https://collections.library.yale.edu/catalog/16725536.

APA, 6th edition

Toomer, Jean, 1894-1967. (["Box 48, folder 1016"])(1924)["America 1924": typescript]. https://collections.library.yale.edu/catalog/16725536.