MLA

Van Vechten, Carl, 1880-1964. Wright, Jimmy. Box 109, folder 2008. 1933 June 26. https://collections.library.yale.edu/catalog/2028837.

APA, 6th edition

Van Vechten, Carl, 1880-1964. (["Box 109, folder 2008"])(1933 June 26)[Wright, Jimmy]. https://collections.library.yale.edu/catalog/2028837.