Wright, Richard T., <br/><br/>
Environmental science :  toward a sustainable future / 
Richard T. Wright, Dorothy F. Boorse, Gordon College. 
 - 13th ed. 
 - New York:  2011. 
 - 1 volume (various pagings) :  color illustrations, color maps ;  28 cm. 
<br/><br/>Includes index 
<br/><br/><label>ISBN: </label>9780134011271  TZS 32,531/= 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Environmental sciences--Textbooks.
<br/><br/><label>Dewey Class. No.: </label>363.7 WRI