00347nam a2200121Ia 4500008004100000040002500041082001300066100004400079245004400123250001800167260003200185300000800217230627s9999    xx            000 0 und d  aNORSU-SiacNORSU-Sia  a330 R53   aRobbins , Philip P. and John A. Tribble 0aStudy guide for introductory economics   aFifth Edition  bD.C HEATH AND COMPANYc1984  a232