Knopf, Alfred A., Sr., with Blanche W. Knopf, Ettie Stettheimer, and Richmond Mayo-Smith at Lynbrook, New York
MLA
Van Vechten, Carl, 1880-1964. Knopf, Alfred A., Sr., with Blanche W. Knopf, Ettie Stettheimer, and Richmond Mayo-Smith at Lynbrook, New York. Box 357 | Folder 4872. 1934 September 12. https://collections.library.yale.edu/catalog/2054970.
APA, 6th edition
Van Vechten, Carl, 1880-1964. (["Box 357 | Folder 4872"])(1934 September 12)[Knopf, Alfred A., Sr., with Blanche W. Knopf, Ettie Stettheimer, and Richmond Mayo-Smith at Lynbrook, New York]. https://collections.library.yale.edu/catalog/2054970.