Webb, John W. <br/><br/>
Programmable logic controllers :   principles and applications / 
John W. Webb; Ronald A. Reis  
 - 5th ed. 
 - New Delhi :  PHI Learning Pvt Ltd,  c2003. 
 - xv, 460p.;  24 cm. 
<br/><br/><label>ISBN: </label>9788120323087 
<br/><br/><label>Subjects--Index Terms: </label>Programmable controllers 
<br/><br/><label>Dewey Class. No.: </label>629.89  / WEB