TY  - BOOK
AU  - Webb, John W.
AU  - Reis, Ronald A.
TI  - Programmable Logic Controllers: Principles and Applications
SN  - 9788120323087
U1  - 629.895 
PY  - 2003///
CY  - New Delhi
PB  - Prentice-Hall of India Pvt. Ltd.
KW  - Instrumentation Engineering
ER  -