Web,John W. <br/><br/>
Programmable logic controllers   John W. Web, Ronald A. Reis  

 - 5th . Ed. 
 - New delhi  PHI Learning Private Limited  2003 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Computer Engineering
<br/><br/><label>Dewey Class. No.: </label>4  / WE-P