00281nam a2200121Ia 4500008004100000041000800041082001300049100001000062245004700072260001500119365001500134700001000149230718s9999    xx            000 0 und d  aeng  a658bPET  aPeter  aPeter Principle Why Things Always 90 Wrong  c1999bRupa  cRs.b95.00  aPeter