Petruzella, Frank D. <br/><br/>
Programmable Logic Controllers. 

 - 4th ed. 
 - Chennai :  McGraw Hill,  2011. 
 - xvii, 396p. 
<br/><br/>includes index. 
<br/><br/><label>ISBN: </label>9789352602124 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Programmable controllers
<br/><br/><label>LC Class. No.: </label>TJ223.P76