Alvarez, David (editor). Allied and Axis Signals Intelligence in World War II. London: Frank Cass, 1999 
Bennett, Ralph. Intelligence Investigations: How Ultra Changed History. Essex: Frank Cass, 1996
Bennett, Ralph. Ultra and the Mediterranean Strategy. New York: William Morrow and Company, 1989
Bennett, Ralph. Ultra in the West: The Normandy Campaign of 1944-45. New York: Charles Scribner's Sons, 1979
Bennett, Richard M. Espionage: An Encyclopedia of Spies and Secrets. London: Virgin Books Ltd, 2002
Bray, J. K. Allied Communications Intelligence and the Battle of the Atlantic. Walnut Creek, CA: Aegean Park Press, 1995
Bray, J. K. Appendices and Bibliography. Walnut Creek, CA: Aegean Park Press, 1995
Bray, J. K. German Naval Communications Intelligence. Walnut Creek, CA: Aegean Park Press, 1995
Bray, J. K. The German Naval Grid and Its Ciphers. Walnut Creek, CA: Aegean Park Press, 1995
Bray, J. K. Technical Intelligence from Allied Communications Intelligence. Walnut Creek, CA: Aegean Park Press, 1995
Bray, J. K. U-Boat Operations. Walnut Creek, CA: Aegean Park Press, 1995
Breuer, William B. Undercover Tales of World War II. New York: Castle Books, 2005
Brown, Anthony Cave. Bodyguard of Lies. New York: Harper and Row, 1975 
Budianksy, Stephen. Battle of Wits: The Complete Story of Codebreaking in World War II. New York: Free Press, 2000
Collier, Basil. Hidden Weapons. Barnsley, UK: Pen and Sword Books Ltd, 2006
Costello, John. Ten Days to Destiny: The Secret Story of the Hess Peace Initiative and British Efforts to Strike a Deal with Hitler. New York: Morrow, 1991
Crowdy, Terry. Deceiving Hitler: Double-Cross and Deception in World War II. Botley, UK: Osprey Publishing, 2008
Cruickshank, Charles. Deception in World War II. New York: Oxford University Press, 1979
Downing, Taylor. Spies in the Sky: The Secret Battle for Aerial Intelligence During World War II. New York: Little, Brown, 2011
Elphick, Peter. Far Eastern File: The Intelligence War in the Far East, 1930-1945. London: Hodder and Stoughton, 1997
Farago, Ladislas. Burn after Reading: The Espionage History of World War II. Annapolis, MD: Naval Institute Press, 2003
Farago, Ladislas. The Game of the Foxes: The Untold Story of German Espionage in the United States and Great Britain during World War II. New York: David McKay and Co, 1971
Halter, J. C. Top Secret Projects of WW II. New York: J. Messner, 1978
Handel, Michael. Strategic and Operational Deception in the Second World War. London: Frank Cass, 1987
Handel, Michael I. Intelligence and Strategy in the Second World War, vol 1. Essex: Frank Cass, 1995
Handel, Michael I. Intelligence and Strategy in the Second World War, vol 2. Essex: Frank Cass, 1995
Holt, Thaddeus. The Deceivers: Allied Military Deception in the Second World War. New York: Scribner, 2004
Hyde, H. Montgomery. Room 3603: Story of the British Intelligence Center in New York.. New York: Farrar, 1963
Irving, David. Breach of Security. London: Kimber, 1968
Kahn, David. The MAGIC Diplomatic Summary. New York: Garland Publishing
Keegan, John. Intelligence in War. New York: Alfred A. Knopf, 2003 
Langhorne, Richard (ed). Diplomacy and Intelligence during the Second World War. Cambridge: Cambridge University Press, 1985
Lewin, Ronald. Ultra Goes to War. Barnsley, UK: Pen and Sword Books Ltd, 2008
Macksey, Kenneth. Without Engima: The Ultra and Fellgiebel Riddles. Hersham, England: Ian Allan, 2001
Petersen, Neal H. (ed). From Hitler's Doorstep: The Wartime Intelligence Reports of Allen Dulles, 1942-1945. University Park: Penn State Press, 1996
Russell, Francis. The Secret War. Alexandria, VA: Time-Life Books, 1981
Weber, Ronald. The Lisbon Route: Entry and Escape in Nazi Europe. Chicago: Ivan R. Dee, Publisher, 2011
West, Nigel. Historical Dictionary of World War II Intelligence. Lanham, MD: Rowman and Littlefield, 2007
West, Nigel. A Matter of Trust: MI5 1945-72. London: Weidenfeld and Nicolson, 1982
West, Nigel. A Thread of Deceit: Espionage Myths of World War II. New York: Random House, 1985
Winterbotham, F. W. The Ultra Secret. New York: Harper and Row, 1974
Winton, John. Ultra at Sea: How Breaking the Nazi Code Affected Allied Naval Strategy during World War II. New York: William Morrow and Company, 1988
Winton, John. Ultra in the Pacific: How Breaking Japanese Code and Ciphers Affected Naval Operations against Japan. London: Leo Cooper, 1993
Worth Jr., Roland H. Secret Allies in the Pacific: Covert Intelligence and Code-Breaking Prior to Attack on Pearl Harbor. Jefferson, NC: McFarland & Company, Inc, 2001
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