TY  - BOOK
AU  - Helfrick, Albert D.,
AU  - Cooper, Willam D.,
TI  - Modern Electronic Instrumention and Measurment Techniques
SN  - 9788120307520
U1  - 621.381548 
PY  - 1990///
CY  - New Delhi
PB  - Prentice-Hall Of India Private Limited
N1  - This book having Appendix
ER  -