Webb,John W. <br/><br/>
Programmable logic controllers / 
John W. Webb 
 - 2nd ed. 
 -  Merrill Publishing Company,  1988 
<br/><br/><label>ISBN: </label>0029464110 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Logic controllers<br/>Programmable
<br/><br/><label>Dewey Class. No.: </label>003  / WEB