TY  - BOOK
AU  - Bolton, W
AU  - Bolton, W
TI  - Programmable logic controllers :  an introduction    
SN  - 9780750647465
AV  - 629.89 BOL 2000 
U1  - 629.89 BOL 2000 
PY  - 2000///
CY  - Oxford
PB  - Newnes
KW  - Instrumentation and Control
ER  -