00266nam a2200109Ia 4500008004100000040002500041082001200066100002300078245001400101260003300115300000800148230627s9999    xx            000 0 und d  aNORSU-SiacNORSU-Sia  a330 Sa4  aSamuelson, Paul A. 0aEconomics  bMcGraw-Hill Book, Inc.c1981  a753