Sobel, B. (1950). The theatre handbook and digest of plays (7th printing--Rev. ed.). Crown Publishers.
Dyfyniad Arddull ChicagoSobel, Bernard. The Theatre Handbook and Digest of Plays. 7th printing--Rev. ed. New York: Crown Publishers, 1950.
Dyfyniad MLASobel, Bernard. The Theatre Handbook and Digest of Plays. 7th printing--Rev. ed. Crown Publishers, 1950.
Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.