Rolland, R. (1921). Johann Christof. Rütten & Loening.
Cita Chicago (17th ed.)Rolland, Romain. Johann Christof. Frankfurt am Main: Rütten & Loening, 1921.
Cita MLA (8th ed.)Rolland, Romain. Johann Christof. Rütten & Loening, 1921.
Atenció: Aquestes cites poden no estar 100% correctes.