Buber, M. (1929). Gustav Landauer. Rütten & Loening.
Cita Chicago (17th ed.)Buber, Martin. Gustav Landauer. Frankfurt am Main: Rütten & Loening, 1929.
Cita MLA (8th ed.)Buber, Martin. Gustav Landauer. Rütten & Loening, 1929.
Atenció: Aquestes cites poden no estar 100% correctes.