Wright, Richard T. <br/><br/>
Environmental Science  
Richard T. Wright  
 - 9th ed. 
 - New Jersey :  Prentice Hall,   2004. 
 - xxiii,712 p. : 
<br/><br/> Includes index  
<br/><br/><label>ISBN: </label>0131442007 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Environmental science 
<br/><br/><label>LC Class. No.: </label>GE105 .W75 2004