ebrary, Inc, Lefebvre, M. H., & Roux, M. M. (2008). Progress on drinking water research. Nova Science Publishers, Inc..

ebrary, Inc, Mathis H. Lefebvre, and Matheo M. Roux. Progress on Drinking Water Research. New York: Nova Science Publishers, Inc., 2008.

ebrary, Inc, et al. Progress on Drinking Water Research. Nova Science Publishers, Inc., 2008.