Cite

Knopf, Alfred A., Jr.

MLA

Van Vechten, Carl, 1880-1964. Knopf, Alfred A., Jr.. Box 357, folder 4860. 1934 July 30. https://collections.library.yale.edu/catalog/2054959.

APA, 6th edition

Van Vechten, Carl, 1880-1964. (["Box 357, folder 4860"])(1934 July 30)[Knopf, Alfred A., Jr.]. https://collections.library.yale.edu/catalog/2054959.