000 00316nam a2200121Ia 4500
020 _a9788120307520
100 _aAlbert D Helfrick
245 _aModern Electronic Instrumentation Measurement Techniques
260 _c1999
_bPRENTICE HALL
_aNew Delhi
300 _axii+446
700 _aWilliam D Cooper
942 _cBK
999 _c21690
_d21690