MLA

Hagedorn, Hermann, 1882-1964. Adams, James Truslow. Box 1. 1931-1936. https://collections.library.yale.edu/catalog/17420189.

APA, 6th edition

Hagedorn, Hermann, 1882-1964. (["Box 1"])(1931-1936)[Adams, James Truslow]. https://collections.library.yale.edu/catalog/17420189.