Tilton, John E. <br/><br/>
On borrowed time?  assessing the threat of mineral depletion /  [electronic resource] : 
John E. Tilton. 
 - Washington, DC :  RFF Press,  c2003. 
 - 1 online resource (1 v.) :  ill. 
<br/><br/>Includes bibliographical references and index. 
<br/><br/><label>ISBN: </label>9781136528019 1136528016 
<br/><br/><label>Source: </label>CL0500000487  Safari Books Online 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Geology, Economic.<br/>Mines and mineral resources.
<br/><br/><label>Index Terms--Genre/Form: </label><br/>Electronic books.