Cox, Richard A. <br/><br/>
Technician's guide to programmable controllers / 
Richard A. Cox 
 - 4th ed. 
 - Albany :  Delmar Thomson Learning,  c2001 
 - x, 374 p. :  ill. ;  23 cm. 
<br/><br/>Includes index 
<br/><br/><label>ISBN: </label>0766814270 (text : alk paper) 0766814289 (I.G. : alk paper) 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Programmable controllers