MLA

Pound, Ezra, 1885-1972. Volitionist Peace: typescript. Box 139, folder 6148. [1937?]. https://collections.library.yale.edu/catalog/17122867.

APA, 6th edition

Pound, Ezra, 1885-1972. (["Box 139, folder 6148"])([1937?])[Volitionist Peace: typescript]. https://collections.library.yale.edu/catalog/17122867.