TY  - BOOK
AU  - Helfrick, Albert D. 
AU  - Cooper, William D.
TI  - Modern Electronic Instrumrntation and Mestrumentation Techniques
SN  - 8120307526
U1  - 621.37 
PY  - 2003///
CY  - New Delhi
PB  - Prentice-Hall of India Private Limited
ER  -