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
"Elgström, Ole and Smith, Michael",The European Union's roles in international politics : concepts and analysis,,Routledge,2006,Routledge/ECPR studies in European political science,,0415390931,,https://cir.nii.ac.jp/crid/1130282272597785472