Smith I. mckenzie <br/><br/>
Electrical and electronic principles level 3 .-0-582-41170-X 

 - Longman, London  1978 
 - 282p 
<br/><br/><label>ISBN: </label>0-582-41170-X 
<br/><br/><label>Dewey Class. No.: </label>621.3 Smi