MLA

Pound, Ezra, 1885-1972. Anon: "Eleanor": typescript. Box 130, folder 5462. [1941 Jul 27]. https://collections.library.yale.edu/catalog/17122856.

APA, 6th edition

Pound, Ezra, 1885-1972. (["Box 130, folder 5462"])([1941 Jul 27])[Anon: "Eleanor": typescript]. https://collections.library.yale.edu/catalog/17122856.