000 00313nam a2200121Ia 4500
008 220201s1997 xx 000 0 eng d
082 _a621.381548
_bHEL
100 _aHelfrick,Albert D.
245 0 _aModern electronic instrumentation and measurment
260 _aDelhi
_bPHI
_c1997
300 _a446
942 _2ddc
999 _c35120
_d35120