00256nam a2200109Ia 4500082002100000100001900021245004600040260003400086300001600120500000500136700000500141  a338.901bG942.EV  aGuha, Ashok S.  aAn evolutionary view of economic growthb  aOxfordbClarendon Pressc1981  a139p. Bibl.  a  a