Parr, E. A. <br/><br/>
Programmable controllers :  an engineer's guide / 
E.A. Parr. 
 - 2nd ed. 
 - Oxford ;  Boston :  Newnes,  1999 
 - x, 357 p. :  ill. ;  24 cm. 
<br/><br/> Includes index. 
<br/><br/><label>ISBN: </label>0750639350  RM174.60 
<br/><br/><label>LCCN: </label>92-030189 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Programmable controllers.