Drury, Michael.  <br/><br/>
Electrical inspection, testing and certification :  a guide to passing the city and guilds 2391 exams / 
Michael Drury.  
 - Third Edition.  
 - New York :   Routledge,   c2020.  
 - x,172p.  
<br/><br/>Includes index.  
<br/><br/>
<br/><br/><label>ISBN: </label>9780367430269 
<br/><br/><label>Subjects--Personal Names: </label><br/>Electrical installation -- Inspection.<br/>Electric wiring -- Testing -- Examinations -- Study guides.
<br/><br/><label>Dewey Class. No.: </label>621.31924 D796 2020