MLA

Van Vechten, Carl, 1880-1964. Evelyn, Judith, as Irina Nikolayevna Arkadina in The Seagull, by Anton Chekhov. Box 347, folder 4560. 1954 June 14. https://collections.library.yale.edu/catalog/2034364.

APA, 6th edition

Van Vechten, Carl, 1880-1964. (["Box 347, folder 4560"])(1954 June 14)[Evelyn, Judith, as Irina Nikolayevna Arkadina in The Seagull, by Anton Chekhov]. https://collections.library.yale.edu/catalog/2034364.