Dunning, Gary <br/><br/>
Introduction to programmable logic controllers / 
Gary Dunning 
 - 2nd ed 
 - Albany, NY:   Delmar Publishers,   c2002 
 - ix, 516 p.:   ill.;   23 cm 
<br/><br/> Includes glossary and index 
<br/><br/><label>ISBN: </label>0766817687 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Programmable controllers