TY  - BOOK
AU  - Nagrath I.J
AU  - Gopal .M
TI  - Control systems engineering
SN  - 8122417000
U1  - 629.8312 NAG 
PY  - 2005///,
CY  - New delhi
PB  - New age international publication limited publishers
KW  - Introduction
KW  - MAthematical models of physical systems
KW  - Control systems and components
ER  -