Kothari's industrial directory of India 1992 

 - 38th ed.  
 - Madras:   Kothari & Sons,   1982 
 - 2591p.  
<br/><br/><label>Subjects--Topical Terms: </label><br/>Economic 
<br/><br/><label>Subjects--Index Terms: </label>Minerals  
<br/><br/><label>Universal Decimal Class. No.: </label>R 38(540)(058.7)  / N2