MLA

Van Vechten, Carl, 1880-1964. Celli, Vincenzo. Box 340 | Folder 4359. 1944 December 11. https://collections.library.yale.edu/catalog/2031783.

APA, 6th edition

Van Vechten, Carl, 1880-1964. (["Box 340 | Folder 4359"])(1944 December 11)[Celli, Vincenzo]. https://collections.library.yale.edu/catalog/2031783.