TY  - BOOK
AU  - Hackworth, J R
AU  - Hackworth, Frederick D.
TI  - Programmable logic controllers: programming methods and applications
SN  - 978817587715 
U1  - 621.395 
PY  - 1994///
CY  - Delhi
PB  - Pearson Education
KW  - Applied physics
ER  -