Dunning, Gary. <br/><br/>
Introduction to programmable logic controllers / 
By Gary Dunning. 
 - 2nd ed. 
 - Bangalore :  Eastern Press ,  2002. 
 - x,516 p.;  PB  25 cm. 
<br/><br/><label>ISBN: </label>0766817687 
<br/><br/><label>Subjects--Topical Terms: </label><br/>PLC instructions<br/>Timer and counter instructions<br/>Comparison and data handling instructions
<br/><br/><label>Dewey Class. No.: </label>629.89  / DUNG