MLA

Toomer, Jean, 1894-1967. Draft. Box 35, folder 747-50. n.d.. https://collections.library.yale.edu/catalog/11395867.

APA, 6th edition

Toomer, Jean, 1894-1967. (["Box 35, folder 747-50"])(n.d.)[Draft]. https://collections.library.yale.edu/catalog/11395867.