Diehl, V., & Hagenberg, R. (1982). Maler in Berlin. Verl. Happy-Happy.
Cita Chicago (17th ed.)Diehl, Volker, i Roland Hagenberg. Maler in Berlin. Berlin: Verl. Happy-Happy, 1982.
Cita MLA (8th ed.)Diehl, Volker, i Roland Hagenberg. Maler in Berlin. Verl. Happy-Happy, 1982.
Atenció: Aquestes cites poden no estar 100% correctes.