Mittal, D K <br/><br/>
Coal industry  

 - New Delhi:   Anmol Publications Pvt. Ltd.,   1994 
 - xxi, 280p.  
<br/><br/><label>ISBN: </label>81-7041-863-1 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Chemical technology 
<br/><br/><label>Subjects--Index Terms: </label>Coal mining  Labour cost  
<br/><br/><label>Universal Decimal Class. No.: </label>662.74  / N4