00253nam a2200109Ia 4500008004100000041000800041082002000049100001600069245004000085260000900125300000900134211209s1979    xx            000 0 und d  aeng  a621.3 N77.3 TER  aTERAJA, B C  aTEXT BOOK OF ELECTRICAL TECHNOLOGY   c1979  a1200