Knopf, Alfred A., Jr.
MLA
Van Vechten, Carl, 1880-1964. Knopf, Alfred A., Jr.. Box 357 | Folder 4859. 1933 September 17. https://collections.library.yale.edu/catalog/2054949.
APA, 6th edition
Van Vechten, Carl, 1880-1964. (["Box 357 | Folder 4859"])(1933 September 17)[Knopf, Alfred A., Jr.]. https://collections.library.yale.edu/catalog/2054949.