Industrial Espionage and Technical Surveillance Counter Measurers by I.I. Androu

Surveillance Countermeasures : The Professional's Guide to Countering Hostile...

Surveillance Countermeasures: The Professional's Guide to Countering Hostile ...

Surveillance Countermeasures: The Professional's Guide to Countering Hostile Su,

Spy University The Spy's Guide to Surveillance & Secret Codes Scholastic Illust…

Guide to the Craft of Surveillance : A Beginner's Book for the Professional, ...

Surveillance Countermeasures: The Professional's Guide to Countering Hostile Sur