Crispin, Alan J. , <br/><br/>
Programmable logic controllers and their engineering applications / 
Alan J. Crispin. 
 - 2nd.ed 
<br/><br/><label>ISBN: </label>0077093178 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Programmable controllers.
<br/><br/><label>LC Class. No.: </label>TJ223 .P76   / .C74 1997