Observer's book of aircraft ; 1965 Observer's book of aircraft ; 1966 Observer's book of aircraft ; 1967 Observer's book of aircraft ; 1968 Observer's book of aircraft ; 1969 Observer's book of aircraft ; 1971 Observer's book of aircraft ; 1973 Observer's book of aircraft ; 1974 Observer's book of aircraft ; 1976 Flugzeuge der Welt : heute morgen Combat aircraft of the world : the first complete, authortative, fully-illustrated guide ot combat aircraft World Guide to Combat Planes one
