APA (7th ed.) Citation

Janhsen, K., Strube, H., & Starker, A. (2009). Hypertonie.

Chicago Style (17th ed.) Citation

Janhsen, Katrin, Helga Strube, and Anne Starker. Hypertonie. Berlin, 2009.

MLA (8th ed.) Citation

Janhsen, Katrin, et al. Hypertonie. 2009.