Coal directory of India:   1982-83 
/ Ministry of Steel, Mines & Coal 
 - Calcutta:   Ministry of Steel, Mines & Coal,   1984 
 - 138p.  
<br/><br/><label>Subjects--Topical Terms: </label><br/>Chemical technology
<br/><br/><label>Subjects--Index Terms: </label>Coal 
<br/><br/><label>Universal Decimal Class. No.: </label>662.66(058.7)  / M4