MLA

Pound, Ezra, 1885-1972. Organically Speaking: typescript. Box 123, folder 5036. n.d.. https://collections.library.yale.edu/catalog/17122824.

APA, 6th edition

Pound, Ezra, 1885-1972. (["Box 123, folder 5036"])(n.d.)[Organically Speaking: typescript]. https://collections.library.yale.edu/catalog/17122824.