TY  - BOOK
AU  - Gopal, M
TI  - Digital control engineering
SN  - 0852263082
U1  - TBB D65,77 M8G 
PY  - 1988///
CY  - New Delhi
PB  - Wiley Eastern 
KW  - Digital control
N1  - Includes appendix, references and index
ER  -