26 records matched your query       

Author:

Barber, Nicola.

Title:

Who broke the wartime codes? / Nicola Barber.

Copyright Date:

2014

Description:

64 p. : ill. : 24 cm.

Subject:

World War, 1939-1945--Cryptography--Juvenile literature.
World War, 1939-1945--Electronic intelligence--United States--Juvenile literature.
World War, 1939-1945--Electronic intelligence--Great Britain--Juvenile literature.
Cryptographers--United States--History--20th century.
Cryptographers--Great Britain--History--20th century.
Cryptography--United States--History.--20th century--Juvenile literature.
Cryptography--Great Britain--History--20th century--Juvenile literature.

Notes:

Includes index. JUN14.

Contents:

A daring raid -- What were wartime codes? -- Who wanted to break them? -- What sort of people were they? -- What did they do to break the codes? -- Who used the information they found? -- What happened to the code-breakers after the war? -- Why was their work significant?

Series:

Primary source detectives

ISBN:

1432996134 (pb)
9781432996130 (pb)
1432996061 (hb)
9781432996062 (hb)

LCCN:

2013015848

Locations:

BOPG851 -- Ames Public Library (Ames)

URAX314 -- Clarke University - Nicholas J. Schrup Library (Dubuque)

KJPF566 -- Fort Madison Public Library (Fort Madison)