TY  - BOOK
AU  - Webb,John W.
AU  - Reis,Ronald A.
TI  - Programmable logic controllers: principles and applications 
SN  - 9788120323087(pbk)
U1  - 629.8 
PY  - 2012///
CY  - New Delhi
PB  - Phi Learning
KW  - Programmable controllers
N1  - Includes bibliographical references (p. 453-454) and index
ER  -