TY  - BOOK
AU  - HELFRICK, ALBERT D
TI  - MODERN INSTRUMENTATION AND MEASUREMENT TECHNIQUES 
SN  - 81-203-0752-6
U1  - 621.38154 O 04 HEL/COO 
PY  - 2004///
CY  - NEW DELHI
PB  - PRENTICE HALL OF INDIA PVT . LTD.
ER  -