APA (7th ed.) Citation

Mocek, I., & Houst, R. (1997). Köln Düsseldorf von hinten: [gay guide] / Ingo Mocek. Gmünder.

Chicago Style (17th ed.) Citation

Mocek, Ingo, and Robert Houst. Köln Düsseldorf Von Hinten: [gay Guide] / Ingo Mocek. Berlin: Gmünder, 1997.

MLA (8th ed.) Citation

Mocek, Ingo, and Robert Houst. Köln Düsseldorf Von Hinten: [gay Guide] / Ingo Mocek. Gmünder, 1997.

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