MLA

Van Vechten, Carl, 1880-1964. Montresor, Beni. Box 367, folder 5173. 1964 March 17. https://collections.library.yale.edu/catalog/2067232.

APA, 6th edition

Van Vechten, Carl, 1880-1964. (["Box 367, folder 5173"])(1964 March 17)[Montresor, Beni]. https://collections.library.yale.edu/catalog/2067232.