MLA

Van Vechten, Carl, 1880-1964. Bentley, Muriel, in Shadow of the Wind, ballet choreographed by Antony Tudor. Box 393, folder 6032. 1948 April 23. https://collections.library.yale.edu/catalog/33270812.

APA, 6th edition

Van Vechten, Carl, 1880-1964. (["Box 393, folder 6032"])(1948 April 23)[Bentley, Muriel, in Shadow of the Wind, ballet choreographed by Antony Tudor]. https://collections.library.yale.edu/catalog/33270812.