MLA

Van Vechten, Carl, 1880-1964. Wright, Jimmy. Box 109, folder 2009. 1933 November 11. https://collections.library.yale.edu/catalog/2028843.

APA, 6th edition

Van Vechten, Carl, 1880-1964. (["Box 109, folder 2009"])(1933 November 11)[Wright, Jimmy]. https://collections.library.yale.edu/catalog/2028843.