Using the 1990 National Electrical Code :  Workbook / 
National Fire Protection Association. 
 - Quincy, MA :  NFPA,  c1990. 
 - iii, 211 p. ;  il. ;  28 cm. 
<br/><br/><label>ISBN: </label> B/.5.00 
<br/><br/><label>Subjects--Topical Terms: </label><br/>INGENIERÍA ELÉCTRICA - MEDIDAS DE SEGURIDAD.
<br/><br/><label>Dewey Class. No.: </label>R621.31924021873  / N213