MLA

Pound, Ezra, 1885-1972. Hutchison, Graham Seton. Box 23, folder 1025-1027. 1934-36. https://collections.library.yale.edu/catalog/17122578.

APA, 6th edition

Pound, Ezra, 1885-1972. (["Box 23, folder 1025-1027"])(1934-36)[Hutchison, Graham Seton]. https://collections.library.yale.edu/catalog/17122578.