00326nam a2200145Ia 4500008004100000041000800041082002100049100001300070245002800083250001200111365001600123710001300139906000900152999001900161230312s9999    xx            000 0 und d  aeng  a621.4b621.4 NAG  aNag P.K.  aPower Plant Engineering  a3rd ed.  cRs.b500.00  aNag P.K.  b1035  c134742d134742