00246nam a2200109Ia 4500082001900000100002300019245003100042260003200073300002100105500000500126700000500131  a530.2bP366.EM  aPeck, Edson Ruther  aElectricty and magnetismb  aNew YorkbMcGraw-Hillc1953  axii, 476p. Index  a  a