Bolton, W. <br/><br/>
Programmable logic controllers :  an introduction / 

 - 5th ed. 
 - Oxford ; Boston :   Elsevier, Newnes,  c2012. 
 - xii, 400 p. :  ill. ;  24 cm. 
<br/><br/> Includes index. 
<br/><br/><label>ISBN: </label>9789380801468 
<br/><br/><label>LC Class. No.: </label>23245-23247 
<br/><br/><label>Dewey Class. No.: </label>629.89  / BOL