MLA

Van Vechten, Carl, 1880-1964. Van Vechten, Carl. Box 380, folder 5611. 1938 March 27. https://collections.library.yale.edu/catalog/10616793.

APA, 6th edition

Van Vechten, Carl, 1880-1964. (["Box 380, folder 5611"])(1938 March 27)[Van Vechten, Carl]. https://collections.library.yale.edu/catalog/10616793.