TY  - BOOK
AU  - Webb,John W.
AU  - Reis,Ronald A.
TI  - Programmable logic controllers: principles and applications
SN  - 8120323084
U1  - 629.89 
PY  - 2003///
CY  - New Delhi
PB  - Prentice-Hall of India
KW  - Programmable controllers
KW  - Automatic control
KW  - Programmable logic devices
N1  - Includes bibliographical references and index
ER  -