TY  - BOOK
AU  - GOPAL, M
TI  - CONTROL SYSTEMS : PRINCIPLES AND DESIGN 
SN  - 0-07-462135-1
U1  - 629.83 N98 GOP 
PY  - 1998///
CY  - NEW DELHI
PB  - TATA MCGRAW-HILL PUBLISHING COMPANY LIMITED
ER  -