TY  - BOOK
ED  - Audio Visual Source
TI  - Introduction to programmable logic controllers
U1  - 629.89 INT 19-- 
PY  - 1900///
CY  - England
PB  - Audio Visual Source
KW  - Process control
KW  - Programmable controllers
N1  - Colour recording systems: VHS/NTSC
ER  -