Pennington, Karrie Lynn Introduction to water resources and environmental issues Karrie Lynn Pennington, Thomas V. Cech - Cambridge Cambridge University Press 2010 - x, 457 p. : ill. ; 26 cm ISBN: 9780521869881 ISSN: 2009035298 Subjects--Topical Terms: Hydrologic cycleWaterWater conservation Dewey Class. No.: 333.91 PEN