MLA

Van Vechten, Carl, 1880-1964. Major, Gerri. Box 225. 1951 May 20. https://collections.library.yale.edu/catalog/2024323.

APA, 6th edition

Van Vechten, Carl, 1880-1964. (["Box 225"])(1951 May 20)[Major, Gerri]. https://collections.library.yale.edu/catalog/2024323.