MLA

Pound, Ezra, 1885-1972. Typescript. Box 111, folder 4705. [1927?]. https://collections.library.yale.edu/catalog/17122793.

APA, 6th edition

Pound, Ezra, 1885-1972. (["Box 111, folder 4705"])([1927?])[Typescript]. https://collections.library.yale.edu/catalog/17122793.