MLA

Van Vechten, Carl, 1880-1964. Barnes, Djuna. Box 664, folder 14632. 1933 November 29. https://collections.library.yale.edu/catalog/33270845.

APA, 6th edition

Van Vechten, Carl, 1880-1964. (["Box 664, folder 14632"])(1933 November 29)[Barnes, Djuna]. https://collections.library.yale.edu/catalog/33270845.