Doughton, Malcolm  <br/><br/>
Maintaining Electrotechnical Systems  Level 3 

 - 2nd ed 
 - US  Cengage Learning  2013 
 - 235 p.  26 cm. 
<br/><br/><label>ISBN: </label>9781408039991 
<br/><br/><label>Dewey Class. No.: </label>621.31924 DOU