TY  - BOOK
AU  - Erickson,Kelvin T.
TI  - Programmable logic controllers: an emphasis on design and application 
SN  - 9780976625926
PY  - 2011///
CY  - Rolla, MO
PB  - Dogwood Valley Press
KW  - Programmable controllers
N1  - Includes bibliographical references and index
ER  -