lonely sky Airships for the future Fleet air arm Observer's book of aircraft ; 1982 Observer's book of aircraft ; 1979 Air navigations : theory and practice Command decision : an exciting novel about the 8th American Air Force in England in World War II complete book of Fighters : an illustrated encyclopedia of every fighter aircraft built and flown World guide to combat planes two Flying guns: the modern era development of aircraft guns, ammunition and installations since 1945 Flying guns the development of aircraft guns, ammunition and installations 1933-1945 Air Forces of the World; Their History, Development and Present Strength