Bolton, W. <br/><br/>
Programmable Logic Controllers /   Textual Documents 
NULL. 
 - 3rd ed /   . 
 - Oxford :   Elsevier ,   2004. 
 - 495 ;   24*18. 
<br/><br/><label>ISBN: </label>  
<br/><br/><label>Subjects--Index Terms: </label>Digital Logic and Computer Design 
<br/><br/><label>Dewey Class. No.: </label>621.381 5  / BOL