Say, M G <br/><br/>
Direct current machines 

 - 2 
 - London  ELBS/Pitman  1985 
 - 396p.  
<br/><br/> Includes bibliographical references and index 
<br/><br/><label>ISBN: </label>273024566 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Direct current machines -- Electrical engineering