approved by the Secretary General and published under his authority
International Civil Aviation Organization
1979-
ICAO circular
144-AT/49, 154-AT/56, 164-AT/61, 171-AT/64, 180-AT/69, 188-AT/72, 193-AT/75, 199-AT/77, 206-AT/81, 210-AT/83, 220-AT/88, 228-AT/92, 235-AT/94, 242-AT/98, 248-AT/101, 254-AT/104
1977 , 1978 , 1979 , 1980 , 1981 , 1982 , 1983 , 1984 , 1985 , 1986 , 1987 , 1988 , 1989 , 1990 , 1991 , 1992
所蔵館2館