SINGH,J G <br/><br/>
UNDERGROUND COAL MINING METHODS 

 - VARANASI  BRAJ PUB  2000 
 - viii+538p.,23X18Cms 
<br/><br/><label>ISBN: </label>8175252057 
<br/><br/><label>Dewey Class. No.: </label>622.2 S617