APA (7th ed.) Citation

Zydoreck, K. (1990). Knorz. Altberliner Verlag.

Chicago Style (17th ed.) Citation

Zydoreck, Karlheinz. Knorz. Berlin: Altberliner Verlag, 1990.

MLA (8th ed.) Citation

Zydoreck, Karlheinz. Knorz. Altberliner Verlag, 1990.

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