Cita APA (7a ed.)

Keller, G. (1922). Hadlaub. Matthes.

Cita Chicago Style (17a ed.)

Keller, Gottfried. Hadlaub. Leipzig ; Hartenstein: Matthes, 1922.

Cita MLA (8a ed.)

Keller, Gottfried. Hadlaub. Matthes, 1922.