Electrical wiring : commercial : based on the 2014 national electrical code 
Simmons, Phil. 
 - 15th ed. 
 -  Cengage Learning,  2015 
 - xx, 612 p. 
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<br/><br/><label>ISBN: </label>978-1-28518685-6 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Commercial buildings -- Electrical equipment.
<br/><br/><label>Dewey Class. No.: </label>621.31924 S5922 2015