MLA

Van Vechten, Carl, 1880-1964. Bonds, Margaret. Box 85, folder 1413. 1956 October 10. https://collections.library.yale.edu/catalog/2003395.

APA, 6th edition

Van Vechten, Carl, 1880-1964. (["Box 85, folder 1413"])(1956 October 10)[Bonds, Margaret]. https://collections.library.yale.edu/catalog/2003395.