MLA

Van Vechten, Carl, 1880-1964. Fritz, Chester. Box 349 | Folder 4626. 1934 October 15. https://collections.library.yale.edu/catalog/2034808.

APA, 6th edition

Van Vechten, Carl, 1880-1964. (["Box 349 | Folder 4626"])(1934 October 15)[Fritz, Chester]. https://collections.library.yale.edu/catalog/2034808.