MLA

Josephson, Matthew, 1899-1978. Aesthete. Box 13, folder 322. 1925. https://collections.library.yale.edu/catalog/17091497.

APA, 6th edition

Josephson, Matthew, 1899-1978. (["Box 13, folder 322"])(1925)[Aesthete]. https://collections.library.yale.edu/catalog/17091497.