The Ministry of Information. (1943). Roof over Britain: The official story of Britain's anti-aircraft defenses 1939-1942. His Majesty's Stationery Office.
Cita Chicago Style (17a ed.)The Ministry of Information. Roof over Britain: The Official Story of Britain's Anti-aircraft Defenses 1939-1942. Londres: His Majesty's Stationery Office, 1943.
Cita MLA (9a ed.)The Ministry of Information. Roof over Britain: The Official Story of Britain's Anti-aircraft Defenses 1939-1942. His Majesty's Stationery Office, 1943.
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