Light Plane recognition Flying colours : Military aircraft markings and camouflage schemes from World War I to the present day Civil aircraft markings glorie van de luchtvaart : encyclopedie met meer dan 1300 illustraties groot Guinness luchtvaartboek : records, feiten, cijfers Aircraft aircraft 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