Cita APA (7a ed.)

Bulcke, C. (1925). Die arme Betty. Ulf Haeger.

Cita Chicago Style (17a ed.)

Bulcke, Carl. Die Arme Betty. Berlin: Ulf Haeger, 1925.

Cita MLA (9a ed.)

Bulcke, Carl. Die Arme Betty. Ulf Haeger, 1925.