X, Y et Z : the real story of how Enigma was broken
Turing, Dermot
X, Y et Z : the real story of how Enigma was broken - Gloustershire [England] The History Press 2018
978 0 7509 8782 0
GREAT BRITAIN GOVERNMENT CODE AND CYPHER SCHOOL
940 548641 TUR
X, Y et Z : the real story of how Enigma was broken - Gloustershire [England] The History Press 2018
978 0 7509 8782 0
GREAT BRITAIN GOVERNMENT CODE AND CYPHER SCHOOL
940 548641 TUR