MLA

Pound, Ezra, 1885-1972. Bunting, Poet of Land: typescript. Box 69, folder 3082. [1940?]. https://collections.library.yale.edu/catalog/32161219.

APA, 6th edition

Pound, Ezra, 1885-1972. (["Box 69, folder 3082"])([1940?])[Bunting, Poet of Land: typescript]. https://collections.library.yale.edu/catalog/32161219.