00326nam a2200109Ia 4500008004100000041000800041082002600049100002300075245006600098260004400164300000800208211209s1994    xx            000 0 und d  aeng  a621.38154 N94 HEL/COO  aHELFRICK, ALBERT D  aMODERN ELECTRONIC INSTRUMENTATION AND MEASUREMENT TECHNIQUES   aNEW DELHIbPRENTICE-HALL OF INDIAc1994  a446