TY  - BOOK
AU  - Dunning, Gary 
TI  - Introduction to programming logic controllers 
SN  - 981-240-227-6 
U1  - 621.395 DUN  
PY  - 1998///
CY  - Thoson learning 
PB  - New York 
KW  - DIGITAL DESIGN/LOGIC DESIGN
ER  -