Benn, G. Deux lettres: Gottfried Benn. Thomas Mann.(1973).
Cita Chicago (17th ed.)Benn, Gottfried. "Deux Lettres: Gottfried Benn." Thomas Mann.(1973) .
Cita MLA (8th ed.)Benn, Gottfried. "Deux Lettres: Gottfried Benn." Thomas Mann.(1973), .
Atenció: Aquestes cites poden no estar 100% correctes.