Botkin,Danial B. <br/><br/>
Environmental science: Earth as a living planet / 
Botkin,Danial B. 
 - 3rd ed. 
 - New York:  John Wiley,  2000. 
 - xxxii,649p;30cm 
<br/><br/>Includes bibliographical references. 
<br/><br/><label>ISBN: </label>0471321737 
<br/><br/><label>Dewey Class. No.: </label>333.7 BOT