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
"O'Brennan, John",The eastern enlargement of the European Union,,Routledge,2006,Routledge advances in European politics,,0415361265,,https://cir.nii.ac.jp/crid/1130000793783135360