Cita APA (7th ed.)

Behrens, A., & Noth, V. (1981). Berliner Stadtbahnbilder: Alfred Behrens ; Volker Noth. Ullstein.

Cita Chicago (17th ed.)

Behrens, Alfred, i Volker Noth. Berliner Stadtbahnbilder: Alfred Behrens ; Volker Noth. Frankfurt am Main ; Berlin ; Wien: Ullstein, 1981.

Cita MLA (8th ed.)

Behrens, Alfred, i Volker Noth. Berliner Stadtbahnbilder: Alfred Behrens ; Volker Noth. Ullstein, 1981.