Lewey, P. (2009). Manuel Graf. Color-Druck.
Cita Chicago (17th ed.)Lewey, Petra. Manuel Graf. Zwickau: Color-Druck, 2009.
Cita MLA (8th ed.)Lewey, Petra. Manuel Graf. Color-Druck, 2009.
Atenció: Aquestes cites poden no estar 100% correctes.
Cita APA (7th ed.)