Voigt, K. C. (2009). Tony Cragg: Second nature. DuMont.
Cita Chicago (17th ed.)Voigt, Kirsten Claudia. Tony Cragg: Second Nature. Köln: DuMont, 2009.
Cita MLA (8th ed.)Voigt, Kirsten Claudia. Tony Cragg: Second Nature. DuMont, 2009.
Atenció: Aquestes cites poden no estar 100% correctes.