00277nam a2200109Ia 4500082000900000100002500009245008000034260003500114300000800149500000500157700000500162  aSFb  aBhattacharya, Sourin  aStudy of production function of manufacturing industries in India 1950-58b  aCalcuttabJadavpur Univ.c1958  a24p  a  a