Cite

Knopf, Edwin H.

MLA

Van Vechten, Carl, 1880-1964. Knopf, Edwin H.. Box 357, folder 4880. 1939 January 4. https://collections.library.yale.edu/catalog/2055290.

APA, 6th edition

Van Vechten, Carl, 1880-1964. (["Box 357, folder 4880"])(1939 January 4)[Knopf, Edwin H.]. https://collections.library.yale.edu/catalog/2055290.