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
Pádraig Ó Riagáin and Georges Lüdi,Bilingual education: some policy issues,,"Council of Europe, Language Policy Division",2003,Politiques linguistiques,,,,https://cir.nii.ac.jp/crid/1130282272163060736