Schmerberg, R. (2014). Ralf Schmerberg, 2014. Atelier Ralf Schmerberg.
Cita Chicago (17th ed.)Schmerberg, Ralf. Ralf Schmerberg, 2014. Berlin: Atelier Ralf Schmerberg, 2014.
Cita MLA (8th ed.)Schmerberg, Ralf. Ralf Schmerberg, 2014. Atelier Ralf Schmerberg, 2014.
Atenció: Aquestes cites poden no estar 100% correctes.