The making of Bletchely Park and signals intelligence 1939-42 /
GREY Christopher
The making of Bletchely Park and signals intelligence 1939-42 / Christopher Grey. - 2013
Describes how signals intelligence came into being at the UK Government code and Cypher School housed at Bletchely Park during the early years of the Second World War, and shows that the process was difficult and the subject of much internal disagreement.
BRITAIN--INTELLIGENCE SERVICES HISTORY
The making of Bletchely Park and signals intelligence 1939-42 / Christopher Grey. - 2013
Describes how signals intelligence came into being at the UK Government code and Cypher School housed at Bletchely Park during the early years of the Second World War, and shows that the process was difficult and the subject of much internal disagreement.
BRITAIN--INTELLIGENCE SERVICES HISTORY