000			00982cam a2200229 4500
020			_a019285304X (pbk.)
100		1	_aHINSLEY F H (ed.)
245		0	_aCodebreakers: _bthe inside story of Bletchley Park
260			_aOxford, U.K.: _bOxford University Press, _c1993
300			_a321p.
520		3	_aHistory of GCHQ Bletchley Park during World War 2. Bletchley has been described as the most successful intelligence agency in history. The book was written by some of the people actually involved in this critically important work. The more important pieces of enemy intelligence obtained were given the overall name of Ultra which included decryptions of German Enigma communications.
650			_aBRITAIN
650			_aCODE BREAKING
650			_aCODES
650			_aCRYPTOGRAPHY
650			_aENIGMA PROJECT
650			_aMILITARY INTELLIGENCE
650			_aSECOND WORLD WAR
650			_aSIGNALS INTELLIGENCE
700			_aSTRIPP Alan (ed.)
945			_i0000482 _rY _sY
999			_c21660 _d21660