Say, Maurice George. <br/><br/>
Direct current machines /  [Book]. 
M. G. Say & E. O. Taylor.  
 - London :   Pitman,   1980. 
 - Pages: 381 
<br/><br/> "A pitman international text".  Includes index. 
<br/><br/><label>ISBN: </label>0273012193 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Electric machinery--Direct current.