MLA

Van Vechten, Carl, 1880-1964. Manson, Alan as Jane Cowl, in This Is the Army, musical with music by Irving Berlin and book by Irving Berlin and James McColl. Box 363, folder 5038. 1942 August 20. https://collections.library.yale.edu/catalog/2065726.

APA, 6th edition

Van Vechten, Carl, 1880-1964. (["Box 363, folder 5038"])(1942 August 20)[Manson, Alan as Jane Cowl, in This Is the Army, musical with music by Irving Berlin and book by Irving Berlin and James McColl]. https://collections.library.yale.edu/catalog/2065726.