MLA

Kümmerer, Klaus, and Maximilian Hempel. Green and Sustainable Pharmacy. Springer Berlin Heidelberg, 2010.

APA

Kümmerer, K., & Hempel, M. (2010). Green and Sustainable Pharmacy. Springer Berlin Heidelberg.

Chicago

Kümmerer, Klaus, Maximilian Hempel, and Klaus Kümmerer. Green and Sustainable Pharmacy. : Springer Berlin Heidelberg, 2010.