Botkin, Deniel B. and Keller, Edward A. <br/><br/>
Enviornemantal Science 
Earth as a Living Planet 
 - 2 
 - New York  Jhon Wiley and Sons, Inc.  1995 
 - 649 
<br/><br/><label>ISBN: </label>9780471157823 
<br/><br/><label>Publisher. No.: </label> Gangaram Book Bureau 
<br/><br/><label>Subjects--Personal Names: </label> Environmental Science  
<br/><br/><label>Subjects--Topical Terms: </label><br/>Environmental Science