MLA

Van Vechten, Carl, 1880-1964. Huey, Richard, as Alexander in Bloomer Girl, musical by Harold Arlen, book by Sig Herzig and Fred Saidy, and lyrics by E. Y. (Edgar Yipsel) Harburg. Box 93, folder 1631. 1944 November 10. https://collections.library.yale.edu/catalog/2026060.

APA, 6th edition

Van Vechten, Carl, 1880-1964. (["Box 93, folder 1631"])(1944 November 10)[Huey, Richard, as Alexander in Bloomer Girl, musical by Harold Arlen, book by Sig Herzig and Fred Saidy, and lyrics by E. Y. (Edgar Yipsel) Harburg]. https://collections.library.yale.edu/catalog/2026060.