Knowles, J. B. (James Brian), 1936- <br/><br/>
Direct digital control systems 
J. B. Knowles 
 - Taunton, Somerset  Research Studies Press  1994 
 - 413 p. ; 23 cm. 
<br/><br/><label>ISBN: </label>0863801676 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Digital control systems