00331    a2200121   4500020001500000082001300015100001900028245003500047260003400082300002300116440003800139650003200177  a0333563026  a537bDUG  aDugdale, David  aEssentials of electromagnetism  aLondonbMacmillanc1993g1993  axiv, 363p.c24.5cm  aMacmillan physical science series  aELECTRICITY AND ELECTRONICS