Bonnet, Robert L., and Keen, G. Daniel, Environmental Science: 49 Science Fair Projects, TAB Books, Blue Ridge Summit, PA
Exploring the Water World, The Regional Water Authority Science Curriculum, New Haven, 1991.
Science Energy Workshop, American Nuclear Society, La Grange Park, IL 60525
Wilson, Carol. Saving Through Energy Management. Wilson Educational Services, Inc. Wallingford, Ct. 1995.