Schmalenbach, W. (1956). Kurt Schwitters.
Cita Chicago (17th ed.)Schmalenbach, Werner. Kurt Schwitters. Hannover, 1956.
Cita MLA (8th ed.)Schmalenbach, Werner. Kurt Schwitters. 1956.
Atenció: Aquestes cites poden no estar 100% correctes.
Cita APA (7th ed.)