Cita APA (7th ed.)

Roatsch, H. (1975). Birken Bernstein blaues Meer. Eulenspiegel.

Cita Chicago (17th ed.)

Roatsch, Horst. Birken Bernstein Blaues Meer. Berlin: Eulenspiegel, 1975.

Cita MLA (8th ed.)

Roatsch, Horst. Birken Bernstein Blaues Meer. Eulenspiegel, 1975.