Lewis, Robert (1996). “The Actors Studio, 1947”. Slings and Arrows: Theater in My Life. New York: Applause Books. p. 183. ISBN1-55783-244-7. https://books.google.com/books?id=EVVX6pynyssC&q=%22Joan+Copeland%22%22Actors+Studio%22&pg=PA183February 25, 2014閲覧. "At the end of the summer, on Gadget's return from Hollywood, we settled the roster of actors for our two classes in what we called the Actors Studio - using the word 'studio' as we had when we named our workshop in the Group, the Group Theatre Studio... My group, meeting three times a week, consisted of Marlon Brando, Montgomery Clift, Maureen Stapleton, Eli Wallach, Mildred Dunnock, Jerome Robbins, Herbert Berghof, Tom Ewell, John Forsythe, Anne Jackson, Sidney Lumet, Kevin McCarthy, Karl Malden, E.G. Marshall, Patricia Neal, Beatrice Straight, David Wayne, and - well, I don't want to drop names, so I'll stop there. In all, there were about fifty."
Paul R. Laird and David Schiff. "Bernstein, Leonard." Grove Music Online. Oxford Music Online. Oxford University Press. Web. August 14, 2014. Oxfordmusiconline.com