MLA

Van Vechten, Carl, 1880-1964. Dolin, Anton, as Count Albrecht in Giselle, choreographed by Anton Dolin. Box 344 | Folder 4475. 1940 October 9. https://collections.library.yale.edu/catalog/2032925.

APA, 6th edition

Van Vechten, Carl, 1880-1964. (["Box 344 | Folder 4475"])(1940 October 9)[Dolin, Anton, as Count Albrecht in Giselle, choreographed by Anton Dolin]. https://collections.library.yale.edu/catalog/2032925.