00282nam a2200121Ia 4500008004100000100002100041245003000062260002300092300000900115650001200124942000700136999001700143190216s9999||||xx |||||||||||||| ||und||  aEdward M Purcell 0aElectricity And Magnetism  bMcgraw -hillc1965  a459p  aPhysics  cBK  c32829d32829