"Guerre mondiale 1939-1945. Guerre aérienne. Allemagne." . . "Geschichte 1939-1945" . . "Guerre mondiale 1939-1945. Unités. Grande-Bretagne. Bomber Command." . . "2. Verdenskrig 1939-1945" . . "Military operations, Aerial." . . "World War, 1939-1945 Aerial operations." . . "1939 - 1945" . . "World War (1939-1945)" . . . "Luftstrategi" . . "\"Bomber Harris\"" . . . . "Moral" . . "Bombeoffensiv" . . "Air warfare." . . "Bomber Command" . . "Luftmagt" . . . . . . . . . "The Bombing Offensive against Germany" . "The bombing offensive against Germany : outlines" . . . . . . . . . . "A study of the decisions and circumstances governing the strategic air offensive against Germany in the Second World War."@en . . "The bombing offensive against Germany"@en . . . . "The bombing offensive against Germany : outlines and perspectives"@en . "The bombing offensive against Germany : outlines and perspectives" . . . . . . . . "The Bombing offensive against Germany. Outlines and perspectives" . "The Bombing Offensive against Germany. Outlines and perspectives, etc"@en . . "The bombing offensive against Germany; outlines and perspectives"@en . . . . . . . . . . "Luftkrieg." . .