The Online Books Page

Books by J. C. Simpson:

Books in the extended shelves:

• Simpson, J. C.: Acid precipitation in North America : 1987 annual and seasonal data summaries from acid deposition system data base (U.S. Environmental Protection Agency, 1989), also by David M. Holland, T. A. Erb, N.C.) Atmospheric Research and Exposure Assessment Laboratory (Research Triangle Park, and United States. Environmental Protection Agency. Office of Research and Development (page images at HathiTrust)
• Simpson, J. C: Uncertainty in North American wet deposition isopleth maps : effect of site selection and valid sample criteria (U.S. Environmental Protection Agency, Atmospheric Research and Exposure Assessment Laboratory, 1990), also by A. R Olsen, Pacific Northwest Laboratory, United States. Department of Energy, and Atmospheric Research and Exposure Assessment Laboratory (U.S.) (page images at HathiTrust)

Find more by J. C. Simpson at your library, or elsewhere.