TY  - BOOK
AU  - Simpson ,Colin  D.
TI  - Programmable Logic Computer Controllers 
SN  - NA
U1  - 629.89 SIM 
PY  - 0000///NA
CY  - London
PB  - Prentice, Hall
KW  - Electronic Engineering
KW  - Technology
N1  - Includes Index
ER  -