MLA

Bullitt, William C. (William Christian), 1891-1967. Bullitt, William C. with others [includes negatives]. Box 183, folder 56 - 62. [ca 1920-1921], 1932-1938, 1944, 1952-1957, undated. https://collections.library.yale.edu/catalog/10468154.

APA, 6th edition

Bullitt, William C. (William Christian), 1891-1967. (["Box 183, folder 56 - 62"])([ca 1920-1921], 1932-1938, 1944, 1952-1957, undated)[Bullitt, William C. with others [includes negatives]]. https://collections.library.yale.edu/catalog/10468154.