Enigma U-boats : breaking the code /

Bibliographic Details
Main Author:	Showell, Jak P. Mallmann
Format:	Book
Language:	English
Published:	Annapolis, Md. : Naval Institute Press, 2009.
Edition:	Rev. ed.
Subjects:	World War, 1939-1945 > Electronic intelligence. World War, 1939-1945 > Naval operations, German. World War, 1939-1945 > Naval operations, British. World War, 1939-1945 > Cryptography. World War, 1939-1945 > Naval operations > Submarine. Submarines (Ships) > Germany > History > 20th century. World War, 1939-1945 > Secret service > Great Britain. Enigma cipher system.

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