Report of working group on coal and lignite for the 8th five years 

 - Delhi  Manager of Publication India      1990 
 - 314p.  cm. 
<br/><br/><label>Standard No.: </label>95044 
<br/><br/><label>Source: </label> Reports 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Coal Industry
<br/><br/><label>Dewey Class. No.: </label>"X9(F551).2.N95-N90, N0/GD"