Petruzella, Frank D. <br/><br/>
Programmable logic controllers/ 
by Frank D. Petruzella 
 - Second Edition 
 - Columbus  McGraw-Hill Publishing Company  1989 
 - v, 464 P.:  Col.ill. 
<br/><br/> Includes Glossary and Index 
<br/><br/><label>ISBN: </label>9780028026619 0028026616 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Programmable logic controllers
<br/><br/><label>Dewey Class. No.: </label>629.895