Das, Pradip Kumar  . <br/><br/>
Petroeum and coal /  
by Pradip Kumar Das; Hrishikesh Baruah. 
 - New Delhi :   M.D. Publications Pvt. Ltd. ,   1997 
 - vii, 139p :  
<br/><br/><label>ISBN: </label>81-7533-042-2 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Technology- Natural gas
<br/><br/><label>Dewey Class. No.: </label>F:551:555  / N7