Behind the enigma : the authorised history of GCHQ, Britain's secret cyber-intelligence agency /Author: Ferris, John Robert,
Publisher: New York : London :
Date: 2020. This title can be found in 1 Iowa libraries.
The spies of winter : the GCHQ codebreakers who fought the Cold War /Author: McKay, Sinclair,
Publisher: London : Aurum Press Ltd,
Date: 2016. This title can be found in 1 Iowa libraries.
GCHQ : the uncensored story of Britain's most secret intelligence agency /Author: Aldrich, Richard J.
Publisher: London : HarperPress,
Date: 2010. This title can be found in 1 Iowa libraries.
GCHQ : the secret wireless war, 1900-86 /Author: West, Nigel.
Publisher: London : Weidenfeld and Nicolson,
Date: c1986. This title can be found in 1 Iowa libraries.
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