00432nam a2200121Ia 4500008004100000040001700041082002400058110004500082245006800127260004700195300001400242650005400256190328s9999||||xx |||||||||||||| ||und||  aNITILcNITIL  221sta550.954bI39R  aIndia. Ministry of Steel, Mines and Fuel 4aThe Role of the geological survey of India in national planning  aCalcuttabGeological Survey of Indiac1961  aiii, 71p.  aGeological survey-India; Geological mapping-India