TY  - BOOK
AU  - Webb, John W.
AU  - Reis, Ronald A., jt. auth.
TI  - Programmable logic controllers : principles and applications
SN  - 9788120323087
U1  - 629.89 WEB-J 
PY  - 2003///
CY  - India
PB  - Prentice-Hall of India
KW  - Programmable controllers
ER  -