Turing, Dermot <br/><br/>
X, Y et Z :  the real story of how Enigma was broken  

 - Gloustershire [England]    The History Press  2018 
<br/><br/><label>ISBN: </label>978 0 7509 8782 0 
<br/><br/><label>Subjects--Topical Terms: </label><br/>GREAT BRITAIN GOVERNMENT CODE AND CYPHER SCHOOL
<br/><br/><label>Dewey Class. No.: </label>940 548641 TUR