Papers presented at the symposium on mineral based industries in the eastern region December 1974  
/ Regional Research Laboratory 
 - Orissa:   Regional Research Laboratory,   1974 
 - vii, 122p.  
<br/><br/><label>Subjects--Topical Terms: </label><br/>Various industries 
<br/><br/><label>Subjects--Index Terms: </label>Non-metallurgical coal  
<br/><br/><label>Universal Decimal Class. No.: </label>67(082.2)   / L4