Report of the regional coal survey station Ranchi / 
Council of Scientific and Industrial  Research Central Fuel Research Institute, India 
 - New Delhi :  Central fuel research Institute,  1963-1964 
 - v. ;  34 cm. 
<br/><br/>Pt.2 1964 Block ii - Ramgarh coald field. - pt.2 1964 Block iv - Ramgarh coald field. 
<br/><br/><label>Dewey Class. No.: </label>622.33(54)