TY  - BOOK
AU  - Bolton, W.
TI  - Programmable logic controllers 
SN  - 978-93-80501-46-8
U1  - 629.895 
PY  - 2009///
CY  - New Delhi
PB  - Elsevier India Private Ltd
KW  - Digital systems
KW  - Input/Output devices
KW  - Timers
N1  - Index
ER  -