Parr, E. A. <br/><br/>
Programmable controllers :   an engineer's guide / 
E. A. Parr 
 - 2nd ed. 
 - Oxford, UK:   Newnes,   1999 
 - xii, 357 p.:   ill.;   23 cm. 
<br/><br/>Includes index 
<br/><br/><label>ISBN: </label>0750639350 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Programmable controllers