00293nam a2200121Ia 4500008004100000041000800041082002100049100001400070245002800084250001000112260004100122300000800163211209s1979    xx            000 0 und d  aeng  a621.3191 N79 WEE  aWEEDY B M  aELECTRIC POWER SYSTEMS   a3 ed.  aNEW DELHIbJOHN WILEY AND SONSc1979  a524