U-boat: the secret menace.
Series: Purnell's history of the Second World War. Weapons book, no. 1
Publisher: Macdonald & Co.
Published: 1968
Place of publication: London
Language: eng
Number of pages: 160
Subjects: World War, 1939-1945 -- Naval operations -- Submarine.; World War, 1939-1945 -- Campaigns -- Atlantic Ocean.; World War, 1939-1945 -- Naval operations, German.