MLA

Brooks, Bryan W, and Duane B Huggett. Human Pharmaceuticals In the Environment. Dordrecht: Springer New York, 2012.

APA

Brooks, B. W, & Huggett, D. B. (2012). Human Pharmaceuticals in the Environment. Dordrecht: Springer New York.

Chicago

Brooks, Bryan W., and Duane B Huggett. Human Pharmaceuticals In the Environment. Dordrecht: Springer New York, 2012.