Whitton, Kenneth S.PersonaAutoreDürrenmatt, reinterpretation in retrospect / Kenneth S. Whitton. - New York ; Oxford ; Munich : Oswald Wolff ; Berg, 1990.The theatre of Friedrich Dürrenmatt : a study in the possibility of freedom / Kenneth S. Whitton. - London : Oswald Wolff ; New Jersey Humanities press, 1980.
