Hackworth, John R. <br/><br/>
Programmable logic controllers :  programming methods and applications / 
John R. Hackworth, Frederick D. Hackworth, Jr. 
 - Upper Saddle River, N.J. :  Merrill,  2004. 
 - xiii, 303 p. :  ill. ;  24 cm.  + 1 CD-ROM (4 3/4 in.) 
<br/><br/>Includes bibliographical references (p. 281) and index. 
<br/><br/><label>ISBN: </label>0130607185 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Programmable controllers.
<br/><br/><label>Dewey Class. No.: </label>629.89 HAC