MLA

Pound, Ezra, 1885-1972. Manuscript notes. Box 70, folder 3140-3141. 1923. https://collections.library.yale.edu/catalog/16036223.

APA, 6th edition

Pound, Ezra, 1885-1972. (["Box 70, folder 3140-3141"])(1923)[Manuscript notes]. https://collections.library.yale.edu/catalog/16036223.