TY  - BOOK
AU  - Gopal, M.
TI  - Control systems: principles and design
SN  - 0-07-048289-6
U1  - S/C-S/T D6,77:4 M7G,P2;7 
PY  - 2002///
CY  - New Delhi
PB  - Tata McGraw-Hill
N1  - Includes Appendix Appendix references and index
ER  -