Electrical wiring commercial : based on the 2017 national electrical code 
Simmons, Phil. 
 - 16th edition. 
 -  Cengage Learning :  2018 
 - xx, 618 p. 
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<br/><br/><label>ISBN: </label>978-1-33710188-2 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Commercial buildings - - electric equipment.
<br/><br/><label>Dewey Class. No.: </label>621 S5922 2018