MLA

Van Vechten, Carl, 1880-1964. Moseley, Lisa Dean. Box 368, folder 5192. 1950 March 13. https://collections.library.yale.edu/catalog/2032476.

APA, 6th edition

Van Vechten, Carl, 1880-1964. (["Box 368, folder 5192"])(1950 March 13)[Moseley, Lisa Dean]. https://collections.library.yale.edu/catalog/2032476.