Dupee-Lowry Publishing
MLA
Toomer, Jean, 1894-1967. Dupee-Lowry Publishing. Box 60, folder 1407. n.d.. https://collections.library.yale.edu/catalog/16725554.
APA, 6th edition
Toomer, Jean, 1894-1967. (["Box 60, folder 1407"])(n.d.)[Dupee-Lowry Publishing]. https://collections.library.yale.edu/catalog/16725554.