Wall, T.F.  <br/><br/>
Three-phase motors : theory and operation  (Book) 

 - London  George Newnes  1952 
 - 232 p.  22 cm. 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Electric motors, Polyphase
<br/><br/><label>Universal Decimal Class. No.: </label>621.313.1 WAL  / 10001