Lewis, Robert S. <br/><br/>
Elements of mining / 
Lewis, Robert S. 
 - 3rd 
 - New York  John Wiley & sons  1962 
<br/><br/><label>ISBN: </label>0471533319 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Mining
<br/><br/><label>Dewey Class. No.: </label>622  / LEW