000 00295nam a2200121Ia 4500
008 211209s1975 xx 000 0 und d
041 _aeng
082 _a621.395 N75 JEF
100 _aJEFFERSON C B
245 _aDIGITAL LOGIC AND SWITCHING CIRCUITS OPERATION
260 _c1975
300 _a526
999 _c13846
_d13846