00293nam a2200109Ia 4500008004100000041000800041082002500049100001300074245003800087260005000125300000800175211209s1980    xx            000 0 und d  aeng  a621.3133 N80 DUF/KAU  aDUFF J R  aALTERNATING CURRENT FUNDAMENTALS   aNEW DELHIbVANNASTRAND REINHOLD COMPANYc1980  a590