APA (7th ed.) Citation

Groschupf, J. (1989). Die Berliner Dröhnung.

Chicago Style (17th ed.) Citation

Groschupf, Johannes. Die Berliner Dröhnung. Berlin, 1989.

MLA (8th ed.) Citation

Groschupf, Johannes. Die Berliner Dröhnung. 1989.

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