000 00396nam a2200121Ia 4500
008 230721s9999||||xx |||||||||||||| ||und||
041 _aeng
082 _a621.381548
_bN90 HEL.C
100 _a Helfrick, Albert D. and Cooper, Wiliam D.
245 0 _a Modern electronic instrumentation and measurement techniques
_c Helfrick, Albert D. and Cooper, Wiliam D.
260 _b PHI
_c1990
942 _cBK
999 _c15754
_d15754