MLA

Van Vechten, Carl, 1880-1964. Robinson-Wayne, Beatrice. Box 103 | Folder 1868. 1935 April 5. https://collections.library.yale.edu/catalog/2027625.

APA, 6th edition

Van Vechten, Carl, 1880-1964. (["Box 103 | Folder 1868"])(1935 April 5)[Robinson-Wayne, Beatrice]. https://collections.library.yale.edu/catalog/2027625.