00573nam a2200193 a 450000500170000008200130001710000240003024500350005425000120008926000300010130000270013149000300015863000190018896400250020799700180023299900150025095200570026595200570032220251202164140.0  a339bPET  aPeterson, Willis  L  aPrinciples of economics  macro  a4th ed.  aOntariobR.D. Irwinc1980  axi, 401 p.b22 cm.bHB  aIrwin Series in economics  aMacroeconomics  bEngc100de010fg_  a8990 W 9132 C  c1264d1264  02104070aPUbPUd1998-04-08l0o339 PETp8990yBK  00104070aPUbPUd1998-04-08l0o339 PETp9132yBK