00285nam a2200109Ia 4500082002400000100002500024245006800049260003200117300001600149500000500165700000500170  a338.060954bB575.RT  aBhattacharya, Debesh  aRole of technological progress in Indian economic developmentb  aCalcuttabWorld Pressc1972  axvii, 276p.  a  a