MLA

Van Vechten, Carl, 1880-1964. Schuyler, Philippa. Box 104 | Folder 1885. 1946 May 31. https://collections.library.yale.edu/catalog/2027968.

APA, 6th edition

Van Vechten, Carl, 1880-1964. (["Box 104 | Folder 1885"])(1946 May 31)[Schuyler, Philippa]. https://collections.library.yale.edu/catalog/2027968.