Schmitz, R. (1991). Forever young: John Chamberlain in Baden-Baden. Parkett.
Cita Chicago (17th ed.)Schmitz, Rudolf. "Forever Young: John Chamberlain in Baden-Baden." Parkett 1991.
Cita MLA (8th ed.)Schmitz, Rudolf. "Forever Young: John Chamberlain in Baden-Baden." Parkett, 1991.
Atenció: Aquestes cites poden no estar 100% correctes.