Mullin, Ray C. & Smith, Robert L. <br/><br/>
Electrical Wiring Commercial 
By Ray C. Mullin & Robert L. Smith 
 - Sixth Edition 
 -  Delmar Publishing, Inc.  1982 
 - xvi, 253 pages, 27 cm. 
<br/><br/> include index 
<br/><br/><label>ISBN: </label>0-8273-2769-2 
<br/><br/><label>Dewey Class. No.: </label>TVEP 621.3192 M91