00278nam a2200109Ia 4500008004100000040002500041082001600066100002400082245002900106260002500135300000800160230627s9999    xx            000 0 und d  aNORSU-SiacNORSU-Sia  a 330.01 M46  aMedina, Roberto G.  0aPrinciples of economics   bRex Book Storec2003  a286