MLA

Van Vechten, Carl, 1880-1964. Kaye, Nora. Box 355 | Folder 4821. 1942 April 16. https://collections.library.yale.edu/catalog/2054529.

APA, 6th edition

Van Vechten, Carl, 1880-1964. (["Box 355 | Folder 4821"])(1942 April 16)[Kaye, Nora]. https://collections.library.yale.edu/catalog/2054529.