TY  - BOOK
AU  - NIIT.
ED  - NIIT (National Institute of Information Technology).
TI  - Programmable logic control : principles and applications
SN  - 9788120325258
U1  - 629.89 NII 
PY  - 2004///
CY  - New Delhi
PB  - PHI Learning
N1  - Includes Index Eastern economy edition
ER  -