00343nam a2200121Ia 4500008004100000040002500041082001200066100004300078245003300121250002600154260003300180300000800213230627s9999    xx            000 0 und d  aNORSU-SiacNORSU-Sia  a330 B62  aBlom, Gardon F. and Robet R. Northrup  0aEconomics of labor relations  aBOMI Abridged Edition  bRichard D. Irwin, Inc.c1973  a206