Knopf, Alfred A., Sr.
MLA
Van Vechten, Carl, 1880-1964. Knopf, Alfred A., Sr.. Box 357 | Folder 4866. 1932 April 4. https://collections.library.yale.edu/catalog/2054921.
APA, 6th edition
Van Vechten, Carl, 1880-1964. (["Box 357 | Folder 4866"])(1932 April 4)[Knopf, Alfred A., Sr.]. https://collections.library.yale.edu/catalog/2054921.