000			00409nam a2200145Ia 4500
008			230106s9999 xx 000 0 und d
082			_a621.381 _bHE-M
100			_aHelfrick,Albert D
245		0	_aModern electronic instrumentation and measurment techniques
250			_a2nd Ed.
260			_aNew Delhi _bPHI Learning Private Limited _c1990
300			_a446
650			_aElectronics Engineering
942			_cBK
999			_c443 _d443