MLA

Van Vechten, Carl, 1880-1964. Schuyler, Josephine, and Philippa Schuyler. Box 104 | Folder 1884. 1946 July 22. https://collections.library.yale.edu/catalog/2001935.

APA, 6th edition

Van Vechten, Carl, 1880-1964. (["Box 104 | Folder 1884"])(1946 July 22)[Schuyler, Josephine, and Philippa Schuyler]. https://collections.library.yale.edu/catalog/2001935.