著者名,書名,版表示,出版者名,出版年,シリーズ名,番号,ISBN,ISSN,URL International Civil Aviation Organization,Guidance material on the avoidance or resolution of conflicts over the application of competition laws to international air transport,,International Civil Aviation Organization,1989,ICAO circular,,,,https://cir.nii.ac.jp/crid/1130000793917675392