00314nam a2200133Ia 4500100002500000650002700025490000800052654002500060245002500085260003100110082001900141300000800160546001200168  aBird/J.O/ May/A.J.C   aElectrical Engineering  vIII  aElectrical Principls  aElectrical Principls  bButtersworthaLondonc1981  a621.3bBir/May  a144  aENGLISH