MLA

Van Vechten, Carl, 1880-1964. Fiske, Dwight. Box 348 | Folder 4594. 1937 December 3. https://collections.library.yale.edu/catalog/2034569.

APA, 6th edition

Van Vechten, Carl, 1880-1964. (["Box 348 | Folder 4594"])(1937 December 3)[Fiske, Dwight]. https://collections.library.yale.edu/catalog/2034569.