Schilling, J. (2006). Wolfgang Petrick: Good slave, bad master.
Cita Chicago (17th ed.)Schilling, Jürgen. Wolfgang Petrick: Good Slave, Bad Master. Berlin, 2006.
Cita MLA (8th ed.)Schilling, Jürgen. Wolfgang Petrick: Good Slave, Bad Master. 2006.
Atenció: Aquestes cites poden no estar 100% correctes.