Cita APA (7a ed.)

Otto, G. (1938). Rumpf. Volckmann Nachf.

Cita Chicago Style (17a ed.)

Otto, Gerhard. Rumpf. Berlin: Volckmann Nachf, 1938.

Cita MLA (8a ed.)

Otto, Gerhard. Rumpf. Volckmann Nachf, 1938.