Unbreakable: the spies who cracked the Nazis' secret code
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Subjects
Subjects
Children's
Cryptographers
Cryptographers -- France
Cryptographers -- France -- Juvenile literature
Cryptographers -- Great Britain
Cryptographers -- Great Britain -- Juvenile literature
Cryptographers -- Poland
Cryptographers -- Poland -- Juvenile literature
Cryptographie
Cryptography
Enigma (Machine à chiffrer)
Enigma (Machine à chiffrer) -- Ouvrages pour la jeunesse
Enigma cipher system
Enigma cipher system -- Juvenile literature
France
Great Britain
Guerre mondiale, 1939-1945
Guerre mondiale, 1939-1945 -- Cryptographie -- Ouvrages pour la jeunesse
Guerre mondiale, 1939-1945 -- Service secret -- Ouvrages pour la jeunesse
History
HISTORY / World
Instructional and educational works
Juvenile Nonfiction
Juvenile works
Poland
Secret service
Service secret
World War, 1939-1945
World War, 1939-1945 -- Cryptography
World War, 1939-1945 -- Cryptography -- Juvenile literature
World War, 1939-1945 -- Secret service
World War, 1939-1945 -- Secret service -- Juvenile literature
Young adult literature
More Details
Contributors
ISBN
9781250814203
9798212186780
9798212186803
9798212186780
9798212186803
UPC
Lexile measure
1000L
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