Walther, John V.  <br/><br/>
Earth's natural resources / 
John V. Walther  
 - Burlington, MA:  John & Bartlett Learning,   c2014. 
 - xxii, 428p.:  ill. 
<br/><br/>Includes references and index  
<br/><br/><label>ISBN: </label>978-1-4496-3234-2 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Natural resources 
<br/><br/><label>Dewey Class. No.: </label>333.7 W237 2014