Pitt, Martin J.  1948- <br/><br/>
Instrumentation and automation in process control 
M.J.Pitt and P.E.Preece 
 - New York :  Ellis Horwood,  1990 
 - 239 p. :  ill. ;  24 cm. 
<br/><br/> includes index 
<br/><br/>p. 235 
<br/><br/><label>ISBN: </label>013465949X 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Chemical process control--Automation