Secret War
Subtitle: Spies, Codes and Guerrillas 1939-1945
Publisher: HarperCollins Publishers Limited
Published: 2015
Language: eng
ISBN-13: 9780008133023
Subjects: World war, 1939-1945, underground movements; World war, 1939-1945, cryptography; World war, 1939-1945, secret service; Great britain, history, 20th century; Intelligence service; Espionage