TY  - BOOK
AU  - Helfrick, Albert 
AU  - Cooper, William D.
TI  - Modern Electronic Instrumentation And Measurement Techniques 
SN  - 9788120307520
U1  - 621.3815 
PY  - 2008///
CY  - 
PB  - Prentice-Hall India Private Limited 
ER  -