APA (7th ed.) Citation

Smet, P. A. G. M., Keller, K., Hänsel, R., & Chandler, R. F. (1993). Adverse Effects of Herbal Drugs 2. Springer Berlin Heidelberg.

Chicago Style (17th ed.) Citation

Smet, Peter A. G. M., Konstantin Keller, Rudolf Hänsel, and R. Frank Chandler. Adverse Effects of Herbal Drugs 2. Berlin, Heidelberg: Springer Berlin Heidelberg, 1993.

MLA (9th ed.) Citation

Smet, Peter A. G. M., et al. Adverse Effects of Herbal Drugs 2. Springer Berlin Heidelberg, 1993.