Coal Council of India. Committee on Assessment of Resources. Sub-Committee on the Coal Resources of the Jharia, Raniganj, and East Bokaro Coalfields with Special Reference to their Coking Coal Potentialities
Coal Council of India. Committee on Assessment of Resources. Sub-Committee on the Coal Resources of the Jharia, Raniganj, and East Bokaro Coalfields with Special Reference to their Non-coking Coal Potentialities