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Bibliographic Details
Main Author:	Calvocoressi, Peter
Format:	Book
Language:	English
Published:	New York : Pantheon Books, [1980]
Edition:	1st American ed.
Subjects:	Calvocoressi, Peter. World War, 1939-1945 > Cryptography. World War, 1939-1945 > Secret service > Great Britain. World War, 1939-1945 > Personal narratives, British.

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