MLA

Van Vechten, Carl, 1880-1964. Anna May Wong (1907-1961) American actress. Box v. 37 Wettergren - Wong | Folder Wong, Anna May [1]. Undated. https://collections.library.yale.edu/catalog/10640824.

APA, 6th edition

Van Vechten, Carl, 1880-1964. (["Box v. 37 Wettergren - Wong | Folder Wong, Anna May [1]"])(Undated)[Anna May Wong (1907-1961) American actress]. https://collections.library.yale.edu/catalog/10640824.