Lewis, Robert S. <br/><br/>
Elements of mining/ 
Robert S. Lewis; revised by George B. Clark 
 - 3rd ed. 
 - New York:  John Wiley,  c1964 
 - xi, 768 p.:  ill., plates;  22 cm. 
<br/><br/> Includes index 
<br/><br/><label>ISBN: </label> $ 22.50 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Mining engineering<br/>Mining industries<br/>Mines and mineral resources
<br/><br/><label>Dewey Class. No.: </label>622