MLA

Pound, Ezra, 1885-1972. Typescripts. Box 71, folder 3201. 1925. https://collections.library.yale.edu/catalog/16055629.

APA, 6th edition

Pound, Ezra, 1885-1972. (["Box 71, folder 3201"])(1925)[Typescripts]. https://collections.library.yale.edu/catalog/16055629.