Kalra, G D <br/><br/>
Mineral development inBihar 1979 - 80 to 1988 - 89 

 - Delhi  National council of applied economic research  1983 
 - V2.(x,381p.); 26cm. 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Coal<br/>Coal fieldwise exploration programme<br/>Coal production<br/>Minign