Lewis, Robert Strong,  1882- <br/><br/>
Elements of mining / 
Robert S. Lewis. 
 - 3rd ed. 
 - New York :  John Wiley & Sons,  1964. 
 - xi, 768 p. :  ill., maps. ;  24 cm. 
<br/><br/>Includes bibliographies. 
<br/><br/><label>ISBN: </label>0471533319 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Mining engineering.