MLA

Van Vechten, Carl, 1880-1964. Wright, Richard. Box 109, folder 2012. 1945 October 27. https://collections.library.yale.edu/catalog/2028869.

APA, 6th edition

Van Vechten, Carl, 1880-1964. (["Box 109, folder 2012"])(1945 October 27)[Wright, Richard]. https://collections.library.yale.edu/catalog/2028869.