TY  - BOOK
AU  - Helfrick,Albert.D 
TI  - Modern Electronic Instrumentation and Measurement Techniques 
SN  - 81-203-0752-6
U1  - 530.7 
PY  - 2001///
CY  - New Delhi 
PB  - Prentice Hall of India 
KW  - Natural sciences & mathematics
KW  - Physics
ER  -