Schum, John L. , <br/><br/>
Locksmithing and electronic security wiring diagrams / 
John L. Schum. 
 - xii, 275 pages :  illustrations ;  23 cm. 
<br/><br/><label>ISBN: </label>0071393056 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Electronic locking devices.<br/>Electric wiring --Charts, diagrams, etc.
<br/><br/><label>LC Class. No.: </label>TH9735   / .S33 2002