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Revision as of 19:36, 22 January 2010 by Datagram (talk | contribs) (Created page with 'Pulford, Graham (2007). ''High Security Mechanical Locks: An Encyclopedic Reference''. ISBN 0750684372. <noinclude>Category:Common references</noinclude>')
Pulford, Graham (2007). High Security Mechanical Locks: An Encyclopedic Reference. ISBN 0750684372.