MITKE, CHARLES A. <br/><br/>
MINING METHODS 

 - 5 
 - LONDON-U.S.A.  MCGRAW-HILL BOOK  199 
 - 194 pag  24 cm 
 - 0  0 .
<br/><br/>STOPING METHOD-MINING 
<br/><br/><label>Subjects--Topical Terms: </label><br/>CIENCIAS PURAS
<br/><br/><label>Dewey Class. No.: </label>549  / M66