MLA

Pound, Ezra, 1885-1972. No. 57, "Jews": typescript. Box 131, folder 5544. [1942 Jun 6]. https://collections.library.yale.edu/catalog/10034815.

APA, 6th edition

Pound, Ezra, 1885-1972. (["Box 131, folder 5544"])([1942 Jun 6])[No. 57, "Jews": typescript]. https://collections.library.yale.edu/catalog/10034815.