ISBN:

• 0750923555
• 0750906316

Edition: Revised edition.

Description: vi, 106 pages : illustrations facsims,1 map ,ports ; 25 cm paperback

Control Number: 201121

Subjects:

• Bletchley Park (Milton Keynes, England) -- History.
• Government Communications Headquarters.
• Great Britain
• World War 2 Intelligence operations
• World War, 1939-1945 -- Cryptography.
• World War, 1939-1945 -- Electronic intelligence -- Great Britain.
• World War, 1939-1945 -- Personal narratives, British.
• World War, 1939-1945 -- Secret service -- Great Britain.

Genre: Personal narratives.