Who broke the wartime codes?
By: Nicola Barber
Series: Primary source detectives
Publisher: Raintree
Published: 2015
Place of publication: London
Language: eng
ISBN-13: 9781406273199
Subjects: Sources; Juvenile literature; World War, 1939-1945; Cryptography
Notes: Originally published: 2014.

Includes bibliographical references and index.

Key Stage 3.

Key Stage 4.