MLA

Van Vechten, Carl, 1880-1964. Donahoe, Edward, at the home of Edward Donahoe in Georgetown, Connecticut. Box 345 | Folder 4493. 1938 September 5. https://collections.library.yale.edu/catalog/2033312.

APA, 6th edition

Van Vechten, Carl, 1880-1964. (["Box 345 | Folder 4493"])(1938 September 5)[Donahoe, Edward, at the home of Edward Donahoe in Georgetown, Connecticut]. https://collections.library.yale.edu/catalog/2033312.