TY  - BOOK
AU  - Webb,John W.
AU  - Reis, Ronald A.
TI  - Programmable Logic Controllers : principles and applications 
T2  - 5th edition
SN  - 013041672X (paperback)
PY  - 1999///
CY  - [S.l.]
PB  - Prentice Hall
KW  - Programmable controllers
UR  - http://10.10.170.122:8080/browse/book/28722
ER  -