00311nam a2200121Ia 4500008004100000040002500041082001200066100002300078245002800101250001800129260003400147300000800181230627s9999    xx            000 0 und d  aNORSU-SiacNORSU-Sia  a330 Sp3  aSpencer, Milton H. 0aContemporary economics   aThird Edition  bWorth Publishers, Inc.c`1977  a772