TY  - BOOK
AU  - HELFRICK & COOPER  
TI  - MODERN ELECTRONIC INSTRUMENTATION & MEASREMENT TECHNIQUES  
T2  - N  
U1  - 621.38154/HEL   
PY  - 0000///
CY  - DELHI PHI, 2008.
PB  - 
N1  - B.TECH
ER  -