Pennington, Karrie Lynn. <br/><br/>
Introduction to water resources and environmental issues / 
Karrie Lynn Pennington [and] Thomas V. Cech. 
 - Cambridge :  Cambridge University Press,  2010. 
 - x, 457 p. :  ill. ;  25 cm. 
<br/><br/> Includes index. 
<br/><br/>Includes bibliographical references. 
<br/><br/><label>ISBN: </label>9780521869881 (hbk.) 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Water.<br/>Hydrologic cycle.<br/>Water conservation.