00294nam a2200097Ia 4500008004100000082002000041100002500061245005300086260004100139300001600180260903b        |||||||| |||| 00| 0 eng d  a338.17bD229.CS  aDasgupta, Amiyakumar  aConception of surplus in theotrical economicsb/  aCalcutta:bDasgupta & Company,c1942  a214p. Index