(1980). Tomi Ungerer: Babylon, Politrics, Fornicon.
Cita Chicago (17th ed.)Tomi Ungerer: Babylon, Politrics, Fornicon. Düsseldorf, 1980.
Cita MLA (8th ed.)Tomi Ungerer: Babylon, Politrics, Fornicon. 1980.
Atenció: Aquestes cites poden no estar 100% correctes.