TY  - BOOK
AU  - Gopal, M.
TI  - Control systems : : principles and design
SN  - 0074621351
U1  - 629.8 
PY  - 1997///
CY  - New Delhi
PB  - Tata McGraw-Hill Publishing Company Limited
KW  - Automatic control
KW  - Systems engineering
N1  - Includes bibliographical references and index
ER  -