00268nam a2200121Ia 4500008004100000041000800041082001500049100001300064245002800077250001200105365001600117700001300133230718s9999    xx            000 0 und d  aeng  a621.4bNAG  aNag P.K.  aPower Plant Engineering  a3rd ed.  cRs.b500.00  aNag P.K.