Harman, Nigel. <br/><br/>
Electrical Installations :   Level 2 - 2330 Technical Certificate. 

 - 1st Ed. 
 - London :   Heinemann,   2007. 
 - viii, 395 p. 
<br/><br/><label>ISBN: </label>9780435449360 
<br/><br/><label>Dewey Class. No.: </label>530  / HAR