Busto, A. <br/><br/>
Electrical code -Republic Act no. 7920 
Busto, Arellano V. 
 -  A.V.B. Printing Press 
 - i, 68 pages :   22 cm. 
<br/><br/><label>ISBN: </label>971-8961-28-3 
<br/><br/><label>Dewey Class. No.: </label>Fil. 621.319 El25 2003