Blum, D. C., & Willis, J. (1981). A pictorial history of the American theatre, 1860-1980 (New Fifth edition.). Crown Publishers.
Lua i Stíl Chicago (17ú heag.)Blum, Daniel C., agus John Willis. A Pictorial History of the American Theatre, 1860-1980. New Fifth edition. New York: Crown Publishers, 1981.
Lua MLA (9ú heag.)Blum, Daniel C., agus John Willis. A Pictorial History of the American Theatre, 1860-1980. New Fifth edition. Crown Publishers, 1981.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.