000 00296nam a2200121Ia 4500
100 _aHelms, Harry L.
020 _a0-07-027980-2
942 _cBK
245 _aContemporary electronics circuits deskbook
260 _aMcGraw - Hill, New York
_c1987
082 _a621.38153 Hel
300 _axii, 253
999 _c66908
_d66908