TY  - BOOK
AU  -  Gopal, M.
TI  -  Control systems : principles and design
SN  - 9780070482890
U1  - 629.8 
PY  - 2002///
CY  - New delhi 
PB  - Tat mcgraw hill publishing company lim
N1  - "it includes the index p.961-971"
ER  -