Cite

Knopf, Alfred A., at the home of the Knopf family, Purchase, New York

MLA

Van Vechten, Carl, 1880-1964. Knopf, Alfred A., at the home of the Knopf family, Purchase, New York. Box 356, folder 4857. 1944 June 17. https://collections.library.yale.edu/catalog/2055049.

APA, 6th edition

Van Vechten, Carl, 1880-1964. (["Box 356, folder 4857"])(1944 June 17)[Knopf, Alfred A., at the home of the Knopf family, Purchase, New York]. https://collections.library.yale.edu/catalog/2055049.