MLA

Van Vechten, Carl, 1880-1964. Hsiung, Dymia. Box 354, folder 4773. 1935 November 10. https://collections.library.yale.edu/catalog/2047318.

APA, 6th edition

Van Vechten, Carl, 1880-1964. (["Box 354, folder 4773"])(1935 November 10)[Hsiung, Dymia]. https://collections.library.yale.edu/catalog/2047318.