MLA

Pound, Ezra, 1885-1972. "America was Intentions": typescript. Box 128, folder 5321. [1942 Feb 26]. https://collections.library.yale.edu/catalog/17122854.

APA, 6th edition

Pound, Ezra, 1885-1972. (["Box 128, folder 5321"])([1942 Feb 26])["America was Intentions": typescript]. https://collections.library.yale.edu/catalog/17122854.