000 00308nam a2200121Ia 4500
020 _a8120307526
100 _aAlbert D Helfrick
245 _aModern Electronic Instrumentation and Measurement Techniques
260 _aNew Delhi
_bPHI
_c1997
300 _axii+446
700 _aWilliam D Cooper.
942 _cBK
999 _c59777
_d59777