00449nam a2200169Ia 4500082002000000100001800020245004200038260002700080300001400107500000500121690000600126700000500132952010100137964001700238921000900255999001500264  a338.54bH249.BC  aHansen, A. H.  aBusiness cycles and national incomeb  aNew YorkbNortonc1964  axx, 721p.  a  a   a  00104070aISIbISId1998-08-21l0o338.54 H249.BCpDP2321r2019-02-14 00:00:00w2019-02-14yBK  abcdefg  a5379  c5379d5379