Jones, Richard Ward. <br/><br/>
Electric control systems / 
Richard W. Jones. 
 - New York :  Wiley,  c 1953. 
 - xiv, 511 p. :  ill. ;  24 cm. 
<br/><br/> Includes index. 
<br/><br/>331  331 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Electric controllers.
<br/><br/><label>Dewey Class. No.: </label>621.317 / J724e