Wright,  Richard T.  <br/><br/>
Environmental Science : Toward a Sustainable Future/  
Richard T. Wright 
 - 9th ed. 
 - New Delhi  Prentice Hall  2005 
 - 736 p 
<br/><br/><label>ISBN: </label>0131442007  625.00 
<br/><br/><label>Dewey Class. No.: </label>333.72  / W99