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		The silent conspiracy : inside the intelligence services in the 1990s / Stephen Dorril. by Dorril, Stephen. Publisher: London : Heineman, 1993Availability: Items available for loan: House of Lords Library - Palace (1). Location(s): Dewey Call number: 327.42 DOR. Place reservation Add to folder (remove)
		Station X : the codebreakers of Bletchley Park / Michael Smith. by Smith, Michael, 1952 May 1-. Publisher: London : Channel 4 Books, 1998Availability: Items available for loan: House of Lords Library - Palace (1). Location(s): Dewey Call number: 940.548641 SMI. Place reservation Add to folder (remove)
		The emperor's codes : Bletchley Park's role in breaking Japan's secret ciphers / Michael Smith. by Smith, Michael, 1952 May 1-. Publisher: London : Dialogue, 2010Availability: Items available for loan: House of Lords Library - Palace (1). Location(s): Dewey Call number: 940.548641 SMI. Place reservation Add to folder (remove)

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