MLA

Richards, Lloyd, 1919-2006. New York production. Box 45, folder 450-455. 1995. https://collections.library.yale.edu/catalog/10544199.

APA, 6th edition

Richards, Lloyd, 1919-2006. (["Box 45, folder 450-455"])(1995)[New York production]. https://collections.library.yale.edu/catalog/10544199.