2 Results
00IIE
Cover image for Colossus : Bletchley Park's greatest secret
by 
Gannon, Paul.
Format: 
Books
Publication Date 
2006
Excerpt: 
Lorenz cipher system.
Available: Copies:
Cover image for Colossus : the secrets of Bletchley Park's codebreaking computers
by 
Copeland, B. Jack, 1950-
Format: 
Books
Publication Date 
2006
Excerpt: 
Lorenz cipher system.
Available: Copies: