MLA

Crosby, Caresse, 1892-1970. Caresse Crosby papers relating to the World Constitutional Convention and the World Man Center, 1964-1967. Box 1. https://collections.library.yale.edu/catalog/17213306.

APA, 6th edition

Crosby, Caresse, 1892-1970. (["Box 1"])[Caresse Crosby papers relating to the World Constitutional Convention and the World Man Center, 1964-1967]. https://collections.library.yale.edu/catalog/17213306.