Krieg 1939-45: Luftkrieg gegen Eng1and s. BroscL.2·4 Front-1ine.- Issued for the Ministry of Horne Security by the Uinistry of Information. Front Line 1940-41. The officia1 story of the civil defence of ßritain. [I11ustr.] -London: H.l1.Stationery Off. 1942. 157 S. 80