TY  - BOOK
AU  - HELFRICK A. D. AND COOPER W. D.
TI  - MODERN ELECTRONIC INSTRUMENTATION AND MEASURMENT TECH.
U1  - 621.381043 
PB  - PRENTICE HALL OF INDIA, NEW DELHI.
KW  - BASIC ELECTRONICS ENGG
N1  - 9424
ER  -