National Geographic Society <br/><br/>
Glencoe Science voyages: Earth and life sciences 

 - New York:  McGraw-Hill Companies, Inc.,  2001. 
 - xvii, 1014p.  ill. some col. 
<br/><br/> includes index. 
<br/><br/><label>ISBN: </label>0078239761 
<br/><br/><label>Dewey Class. No.: </label>550