Western bengal coal -field    report and accounts 31st March 1950-51,1953,1961.    

 - Calcutta  Modern press           1950 
 - 1950(15p)  1951(11p0  1953(11p)  cm. 
<br/><br/><label>Source: </label> General Book 
<br/><br/><label>Dewey Class. No.: </label>X9(F551).N6r, K1