TY  - BOOK
AU  - Nagrath, I.J. Gopal, M 
TI  - Text book of control systems engineering 
SN  - 978-81-224-2776-9 
U1  - 629.8 NAG  
PY  - 2010///
CY  - New age international private, Ltd. 
PB  - New Delhi 
KW  - CONTROL SYSTEM
ER  -