Botkin, Daniel B.  <br/><br/>
Environmental sciences:  earth as a living planet / 
Daniel B. Botkin, Edward A. Keller  
 - 4th ed.  
 - New Jersey:  John Wiley,  c2003. 
 - xxvii, [722]p.;  ill. 
<br/><br/>Includes index  
<br/><br/><label>ISBN: </label>981-4126-98-5 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Environmental sciences 
<br/><br/><label>Dewey Class. No.: </label>333.7 B749 2003