National electrical code handbook :  based on the current 1981 National electrical code / 
edited by J. F. McPartland, John M. McPartland and Guy I. McPartland. 
 - 17th ed. 
 - New York :  Mcgraw hill,  c 1981. 
 - xvi, 1133 p. :  ill. ;  24 cm. 
<br/><br/> Includes index. 
<br/><br/>337  337 
<br/><br/><label>ISBN: </label>0-07-045693-3 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Electrical handbook.
<br/><br/><label>Dewey Class. No.: </label>621.3007 / M24m