Cummins, A. B. <br/><br/>
SME mining engineering handbook. 

 - New York :  Soc. of Mining eng. AIME,  1973. 
 - 2v. 
<br/><br/><label>Subjects--Topical Terms: </label><br/>INGENIERIA DE MINAS
<br/><br/><label>Universal Decimal Class. No.: </label>622.01