Graham Pulford <br/><br/>
High-Security Mechanical Locks  An Encyclopedic Reference 

 -  Butterworth-Heinemann  2007 
<br/><br/><label>ISBN: </label>9780750684378 
<br/><br/><label>Subjects--Topical Terms: </label><br/> Criminology<br/>Locks and keys--Encyclopedias.<br/>SOCIAL SCIENCE