MLA

Van Vechten, Carl, 1880-1964. Cerbone, Charles. Box 340, folder 4360. 1961 October 23. https://collections.library.yale.edu/catalog/2031798.

APA, 6th edition

Van Vechten, Carl, 1880-1964. (["Box 340, folder 4360"])(1961 October 23)[Cerbone, Charles]. https://collections.library.yale.edu/catalog/2031798.