MLA

Van Vechten, Carl, 1880-1964. Beckman, Fred, Roger Davis, Oliver Messel, and Antonio Angelo "Tony" Soma at Tony's, a nightclub owned by Soma in New York City. Box 335, folder 4211. 1935 August 2. https://collections.library.yale.edu/catalog/2067017.

APA, 6th edition

Van Vechten, Carl, 1880-1964. (["Box 335, folder 4211"])(1935 August 2)[Beckman, Fred, Roger Davis, Oliver Messel, and Antonio Angelo "Tony" Soma at Tony's, a nightclub owned by Soma in New York City]. https://collections.library.yale.edu/catalog/2067017.