MLA

Van Vechten, Carl, 1880-1964. Tynes, Margaret. Box 224. 1959 September 14. https://collections.library.yale.edu/catalog/2023858.

APA, 6th edition

Van Vechten, Carl, 1880-1964. (["Box 224"])(1959 September 14)[Tynes, Margaret]. https://collections.library.yale.edu/catalog/2023858.