MLA

Toomer, Jean, 1894-1967. "Something More": typescript. Box 54, folder 1235. n.d.. https://collections.library.yale.edu/catalog/16725548.

APA, 6th edition

Toomer, Jean, 1894-1967. (["Box 54, folder 1235"])(n.d.)["Something More": typescript]. https://collections.library.yale.edu/catalog/16725548.