First American Edition ed. Book call no. The Rise and Fall of the German Air Force, 1933-1945 . With a New Introduction by Air Commodore H.A. Probert. New York, St. Martin's Press, Reprinted 1983.
Book call no.
940.544943 R595 Great Britain. Prepared for the War Office and the Air Ministry by the Ministry of Information. London, HMSO, 1943. The Great London Barrage, pp 48-54. Book call no.