TY  - BOOK
AU  - Cooper, W. D. 
AU  - Helfrick, A. D. 
TI  - Electronic Instrumentation and Measurement Techniques 
SN  - 0876924135 
U1  - 530 COO  
PY  - 1985///
CY  - New Delhi
PB  - Prentice Hall of India Private Limited
ER  -