00367nam a22001457a 4500003001200000005001700012008004100029020000600070040001200076082001400088100002000102245005700122260001100179650003100190NUST - PNEC20170116180920.0150904b        xxu||||| |||| 00| 0 eng d  a-  cLIBRARY  a621.3 KOW  aKowalski, S. J.  aAn introduction to electrotechnologycS. J. Kowalski  cc.1960  bElectrical EngineeringxEE