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Nitrate in Ground Water and Stream Base Flow in the Lower Susquehanna River Basin, Pennsylvania and Maryland

Bruce D. LindseyConnie A. LoperRobert A. Hainly

出版	U.S. Department of the Interior, U.S. Geological Survey, 1997
URL	http://books.google.com.hk/books?id=XmzuAAAAMAAJ&hl=&source=gbs_api
EBook	FULL_PUBLIC_DOMAIN