Excerpts, typescript
MLA
Cullen, Countee, 1903-1946. Excerpts, typescript. Box 2, folder 28. n.d.. https://collections.library.yale.edu/catalog/16731072.
APA, 6th edition
Cullen, Countee, 1903-1946. (["Box 2, folder 28"])(n.d.)[Excerpts, typescript]. https://collections.library.yale.edu/catalog/16731072.