MLA

Van Vechten, Carl, 1880-1964. Rawlings, Marjorie Kinnan. Box 372, folder 5314. 1953 January 18. https://collections.library.yale.edu/catalog/10001399.

APA, 6th edition

Van Vechten, Carl, 1880-1964. (["Box 372, folder 5314"])(1953 January 18)[Rawlings, Marjorie Kinnan]. https://collections.library.yale.edu/catalog/10001399.