Assembly eighteenth session // International Civil Aviation Organization : Vienna, 15 June - 7 July 1971: Protocol : relating to an amendment to the Convention on International Civil Aviation (Article 56), signet at Vienna, on 7 July 1971
Protocole
Protocolo
Session. Assembly, International Civil Aviation Organization ; 18 ; 1971 ; Vienna Session. Assembly, International Civil Aviation Organization ; 18 (Vienna) : 1971.06.15-07.07
1972
3 S.
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