MLA

Van Vechten, Carl, 1880-1964. Wong, Anna May, at the Westport Country Playhouse, Westport, Connecticut. Box 384, folder 5732. 1937 August 11. https://collections.library.yale.edu/catalog/10645811.

APA, 6th edition

Van Vechten, Carl, 1880-1964. (["Box 384, folder 5732"])(1937 August 11)[Wong, Anna May, at the Westport Country Playhouse, Westport, Connecticut]. https://collections.library.yale.edu/catalog/10645811.