MLA

Van Vechten, Carl, 1880-1964. Roll Number VIII. Box 566, folder 10470. 1932 March 2. https://collections.library.yale.edu/catalog/32329339.

APA, 6th edition

Van Vechten, Carl, 1880-1964. (["Box 566, folder 10470"])(1932 March 2)[Roll Number VIII]. https://collections.library.yale.edu/catalog/32329339.