MLA

Van Vechten, Carl, 1880-1964. Anderson, Marian. Box 82 | Folder 1350. 1947 July 17. https://collections.library.yale.edu/catalog/2020200.

APA, 6th edition

Van Vechten, Carl, 1880-1964. (["Box 82 | Folder 1350"])(1947 July 17)[Anderson, Marian]. https://collections.library.yale.edu/catalog/2020200.