Internet and other Resources
Http://www.epa.gov/gmpo/edresources/water_5.html
Http://www.units.muohio.edu/dragonfly/water/whatyou.shtml
Http://www.units.muohio.edu/dragonfly/water/index.shtml
Http://sites.state.pa.us/PA_Exec/fish_Boat/jf2001/wpollbas.htm
Http://www.geocities.com/RainForest/5161/water1.htm
Dr. Suess The Lorax
Living in The Environment: An Introduction to Environmental Science
by G. Tyler Miller