Online Books by
Mark E Jensen
Books from the extended shelves:
![[X-Info]](https://onlinebooks.library.upenn.edu/infouc.gif)
Jensen, Mark E.: Investigation of hydrogeologic mapping to delineate protection zones around springs : report of two case studies / (Cincinnati, Ohio : National Risk Management Research Laboratory, Office of Research and Development, U. S. Environmental Protection Agency ; Springfield, Va. : reproduced by National Technical Information Service, U.S. Dept. of Commerce, 1997), also by Michael Wireman, Mike Lowe, and National Risk Management Research Laboratory (U.S.) (page images at HathiTrust)
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