Online Books by
Wayne A. Pettyjohn
(Pettyjohn, Wayne A., 1933-)
Books from the extended shelves:
- Pettyjohn, Wayne A., 1933-: Protection of public water supplies from ground-water contamination. (Cincinnati, OH : Center for Environmental Research Information, 1986), also by Dynamac Corporation and Center for Environmental Research Information (U.S.) (page images at HathiTrust)
- Pettyjohn, Wayne A., 1933-: Regional assessment of aquifer vulnerability and sensitivity in the conterminous United States / (Washington, D.C. : U.S. Environmental Protection Agency, Office of Research and Development, 1991), also by Dale Self, Mark Savoca, Robert S. Kerr Environmental Research Laboratory, and United States. Environmental Protection Agency. Office of Research and Development (page images at HathiTrust)
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