Cita APA (7th ed.)

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

Cita Chicago (17th ed.)

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

Cita MLA (8th ed.)

Keller, Gottfried. Hadlaub. Matthes, 1922.