Wright, Richard T.,  1933- <br/><br/>
Environmental science :  toward a sustainable future / 
Richard T. Wright. 
 - 9th ed. 
 - Upper Saddle River, N.J. :  Prentice Hall,  2005. 
 - xxiii, 712 p. :  col. ill. +  1 CD-ROM 
<br/><br/>Includes bibliographical references and index. 
<br/><br/><label>ISBN: </label>0131442007 0131920219 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Environmental sciences--Textbooks.