00251nam a2200109Ia 4500082002200000100002000022245004700042260002500089300001700114500000500131700000500136  a332.4973bC782.SM  aCopeland, M. A.  aStudy of moneyflows in the United Statesb  aNew YorkbNBERc1952  axxxii, 338p.  a  a