TY  - BOOK
AU  - Helfrick, Albert D
AU  - Cooper, William D
TI  - Modern Electronic Instrumentation and Measurement Techniques
U1  - 621.381 54 
PY  - 1997///
CY  - New Delhi
PB  - Prentice Hall 
KW  - Electronics and communication engineering
KW  -  Instrumention
ER  -