000 00310nam a2200121Ia 4500
008 220201s2000 xx 000 0 eng d
082 _a621.381
_bHEL
100 _aHelfrick,Albert D.
245 0 _aModern electronics instrumentation & measurement
260 _aDelhi
_bPHI
_c2000
300 _a446
942 _2ddc
999 _c35953
_d35953