The institution of Electrical engineers <br/><br/>
Regulations for the electrical equipment of buildings 
The institution of Electrical engineers 
 - 12th ed. 
 - London  Savoy Place  1950 
 - 201 p.  ill.  18 cm, 
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<br/><br/><label>Subjects--Topical Terms: </label><br/>D
<br/><br/><label>Dewey Class. No.: </label>621.86  / INS