Cita APA (7th ed.)

Metzel, O. Berlin in der Tasche. Olaf Metzel : Noproblem.

Cita Chicago (17th ed.)

Metzel, Olaf. "Berlin in Der Tasche." Olaf Metzel : Noproblem .

Cita MLA (8th ed.)

Metzel, Olaf. "Berlin in Der Tasche." Olaf Metzel : Noproblem, .

Atenció: Aquestes cites poden no estar 100% correctes.