MLA

Van Vechten, Carl, 1880-1964. Schuyler, Philippa. Box 104 | Folder 1886. 1946 July 22. https://collections.library.yale.edu/catalog/2027947.

APA, 6th edition

Van Vechten, Carl, 1880-1964. (["Box 104 | Folder 1886"])(1946 July 22)[Schuyler, Philippa]. https://collections.library.yale.edu/catalog/2027947.