MLA

Jucker, Ernst, et al. Natural Compounds As Drugs. Birkhäuser Basel, 2008.

APA

Jucker, E., Amstutz, R., Herrling, P. L, Petersen, F., René Amstutz, R. Amstutz, & Matter, A. (2008). Natural Compounds as Drugs. Birkhäuser Basel.

Chicago

Jucker, Ernst, René Amstutz, Paul L Herrling, Frank Petersen, René Amstutz, and Alex Matter. Natural Compounds As Drugs. : Birkhäuser Basel, 2008.