Environmental science : toward a sustainable future 
Richard I. Wright. 
 - 9th ed. 
 -  Pearson Prentice Hall,  2005 
 - xxiii, 712 p. 
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<br/><br/><label>Subjects--Topical Terms: </label><br/>Environmental sciences.
<br/><br/><label>Dewey Class. No.: </label>363.7 W952 2005