Proceedings of the symposium on the nature of coal held at the central fuel research institute Jealgora 7-9 February 1959  

 - Jealgora:   The Central Fuel Research Institute,   1959 
 - 321p. 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Coal
<br/><br/><label>Subjects--Index Terms: </label>Nature 
<br/><br/><label>Universal Decimal Class. No.: </label>662.33:539.2(082.2)  / J9