Types of Espionage: Industrial Espionage, Military Intelligence, Counter-Intelligence, Clandestine Humint Operational Techniques
Source Wikipedia
Operation Columba--The Secret Pigeon Service: The Untold Story of World War II Resistance in Europe – A Military Espionage Account of British Intelligence and Courage in Occupied France
Gordon Corera
Espionage and Treason: A Study of the Proxenia in Political and Military Intelligence Gathering in Classical Greece
André Gerolymatos
Rahab’s House of Spies: Covert Action, Military Intelligence, and Espionage Oversight
Daniele-Hadi Irandoost
Department 89 Complete Collection Mega-Boxset: Complete Military Intelligence Thriller Series – 12 Action-Packed Books of Espionage, Covert Operations & Political Intrigue
Mark O'Neill
Rahab’s House of Spies: Covert Action, Military Intelligence, and Espionage Oversight
Daniele-Hadi Irandoost
Intelligence, Espionage and Related Topics (Bibliographies and Indexes in Military Studies)
James D. Calder
Biological Espionage: Special Operations of the Soviet and Russian Foreign Intelligence Services in the West (Greenhill Military Paperbacks) by Alexander Kouzminov (15-Feb-2005) Paperback
Alexander Kouzminov
World War II Word Search: 55 Large Print Puzzles Featuring Historic Battles, Military Leaders, Aircraft, Tanks, Intelligence Operations, and Espionage Activities for Adults and Seniors
Force for Good Studios
Secret Intelligence. Military espionage (Russian Edition)
V.N. Klembovskij
THE SERVICE The Memoirs of... Hitler's head of military espionage in Russia. OSS and West German Intelligence Agency.
Reinhard Gen'l Gehlen
Espionage and counterespionage; adventures in military intelligence
Unknown Author
Mind Control, Assassinations, and Espionage: The Dark Secrets of Project Camelot's Military and Intelligence Research Programs
Rene Mulbery
Rahab's House of Spies: Covert Action, Military Intelligence, and Espionage Oversight: covert action, military intelligence, and espionage oversight
Daniele-Hadi Irandoost
Espionage and Counterespionage: Adventures in Military Intelligence
Arch Whithouse
Critical Intelligence: A Gripping Military Espionage Novel About an Elite Team That Doesn't Exist
Don Pendleton