00449nam a2200157Ia 4500008004100000020001500041082001800056100002400074245006500098250000700163260003600170300002400206500001900230600002700249650001500276240925s9999    xx            000 0 und d  a8120307526  a621.38102 HEL  aHelfrick, Albert D. 0aModern Electronic Instrumentation and Measurement Techniques  aNA  aLondon:bPrentice, Hallc,2003.  a348p.bNAfOriginal  aIncludes Index  aElectronic Engineering  aTechnology