El teatro norteamericano contemporáneo - Downer, Alan S.; Jackson, Esther M.; Goldstein, Malcolm; Lithgow, Arthur; Norton, Elliot; Barr, Richard; Hewitt, Barnard; Bentley, Eric; Weales , Gerald; Burr Pettet, Edwin; Downer, Alan S.; Gassner, John; et al. (América en letras, 1969)