TY  - BOOK
AU  - Webb,John W.
AU  - Reis,Ronald A.
TI  - Programmable logic controllers: principles and applications 
SN  - 9813026707
U1  - 629.895 
PY  - 1995///
CY  - New Jersey
PB  - Prentice Hall
KW  - Programmable controllers
N1  - 600-699
ER  -