MLA

Van Vechten, Carl, 1880-1964. Kisling, Moïse. Box 356, folder 4851. 1941 March 3. https://collections.library.yale.edu/catalog/2054899.

APA, 6th edition

Van Vechten, Carl, 1880-1964. (["Box 356, folder 4851"])(1941 March 3)[Kisling, Moïse]. https://collections.library.yale.edu/catalog/2054899.