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 "Weisman, Ethan",Trade in services and imperfect competition : application to international aviation,,Kluwer Academic,1990,International studies in the service economy,,0792309006,,https://cir.nii.ac.jp/crid/1130282270074321536