APA (7th ed.) Citation

Diehl, V., & Hagenberg, R. (1982). Maler in Berlin. Verl. Happy-Happy.

Chicago Style (17th ed.) Citation

Diehl, Volker, and Roland Hagenberg. Maler in Berlin. Berlin: Verl. Happy-Happy, 1982.

MLA (8th ed.) Citation

Diehl, Volker, and Roland Hagenberg. Maler in Berlin. Verl. Happy-Happy, 1982.

Warning: These citations may not always be 100% accurate.