MLA

Pound, Ezra, 1885-1972. Anon.: "Brain...Mistrust": typescript "Brooks Adams did not foresee...": typescript. Box 129, folder 5377. [1940?] Jul 5. https://collections.library.yale.edu/catalog/10034811.

APA, 6th edition

Pound, Ezra, 1885-1972. (["Box 129, folder 5377"])([1940?] Jul 5)[Anon.: "Brain...Mistrust": typescript "Brooks Adams did not foresee...": typescript]. https://collections.library.yale.edu/catalog/10034811.