Title: Spies and code breakers
First published: 2008
Subjects: Spies, Sources, Secret service, World War, 1939-1945, Juvenile literature, Espionage, History, Spies, juvenile literature, World war, 1939-1945, secret service, World war, 1939-1945, juvenile literature
Time periods: 20th century
LC classification: JF1525.I6 S35 2008