Hughes, Thomas A. <br/><br/>
Programmable controllers / 
Thomas A. Hughes 
 - 4th ed. 
 - Research Triangle Park, NC :  ISA,  c2005 
 - xv, 369 p. :  ill. ;  26 cm. 
 - Resources for measurement and control series .
 - Resources for measurement and control series .
<br/><br/>Includes bibliographical references and index 
<br/><br/><label>ISBN: </label>9781556178993 1556178999 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Programmable controllers