TY  - BOOK
AU  - Helfrick, Albert D
AU  - Cooper, William D
TI  - Modern electronic instrumentation and measurement techniques 
SN  - 81-203-0752-6
U1  - 621.381 028 4 
PY  - 1998///
CY  - New Delhi
PB  - Prentice-Hall of India
KW  - Engineering- Electrical
ER  -