00322nam a2200121Ia 4500008004100000041001200041082001700053100000900070245003800079260003800117300000800155400003700163231217s9999    xx            000 0 und d  aEnglish  a621.381  NTT  aNTTF 0aElectronics production technology  bNew Delhi : Dept. of Electronics,  a140  aImpact learning materials series