Electrical systems based on the 2005 NEC (National Electrical Code) :  answer key 

 - 17 pages  illustrations  28 cm 
<br/><br/><label>ISBN: </label>0826917410 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Eelctrical
<br/><br/><label>Dewey Class. No.: </label>621 ELE