MLA

Van Vechten, Carl, 1880-1964. Haydon, Julie. Box 353 | Folder 4742. 1939 May 23. https://collections.library.yale.edu/catalog/2036530.

APA, 6th edition

Van Vechten, Carl, 1880-1964. (["Box 353 | Folder 4742"])(1939 May 23)[Haydon, Julie]. https://collections.library.yale.edu/catalog/2036530.