MLA

Van Vechten, Carl, 1880-1964. Simonson, Lee. Box 375 | Folder 5434. 1933 November 23. https://collections.library.yale.edu/catalog/10054056.

APA, 6th edition

Van Vechten, Carl, 1880-1964. (["Box 375 | Folder 5434"])(1933 November 23)[Simonson, Lee]. https://collections.library.yale.edu/catalog/10054056.