MLA

Van Vechten, Carl, 1880-1964. Wong, Anna May. Box 383 | Folder 5722. 1935 September 22. https://collections.library.yale.edu/catalog/10189919.

APA, 6th edition

Van Vechten, Carl, 1880-1964. (["Box 383 | Folder 5722"])(1935 September 22)[Wong, Anna May]. https://collections.library.yale.edu/catalog/10189919.