APA (7th ed.) Citation

Pennartz, P. M., Kinzel, C., & Pütz, C. (1987). Pips 5 & 6 & 7. Bonna Dilletanten.

Chicago Style (17th ed.) Citation

Pennartz, Peter Maria, Cay Kinzel, and Claudia Pütz. Pips 5 & 6 & 7. Bonn: Bonna Dilletanten, 1987.

MLA (9th ed.) Citation

Pennartz, Peter Maria, et al. Pips 5 & 6 & 7. Bonna Dilletanten, 1987.