TY  - BOOK
AU  - Helfrick.Albert D
AU  - Cooper,William D.
TI  - Modern electronic instrumentation and measurement techniques
SN  - 8120307526
U1  - 621.38154 
PY  - 2001///
CY  - New Delhi
PB  - Prentice Hall Of India
KW  - Applied physics
ER  -