00320nam a2200121Ia 4500008004100000040002500041082001200066100002400078245003400102250001800136260003600154300000800190230627s9999    xx            000 0 und d  aNORSU-SiacNORSU-Sia  a330 M19  aMckenna , Joseph P. 0aAggregate economics analysis   aFifth Edition  bNational Book Store, Inc.c1977  a336