MLA

Van Vechten, Carl, 1880-1964. Waugh, Evelyn. Box 382 | Folder 5688. 1948 December 15. https://collections.library.yale.edu/catalog/10631130.

APA, 6th edition

Van Vechten, Carl, 1880-1964. (["Box 382 | Folder 5688"])(1948 December 15)[Waugh, Evelyn]. https://collections.library.yale.edu/catalog/10631130.