TY  - BOOK
AU  - Helfrick,Albert D.
AU  - Cooper,William D.
TI  - Modern Electronic Instrumentation and Measurement Techniques 
SN  - 9789332556065
U1  - 621.38154 HEL 
PY  - 2016///
CY  - Noida
PB  - Pearson
ER  -