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
"Laver, Michael",Estimating the policy positions of political actors,,Routledge,2001,Routledge/ECPR studies in European political science,,0415244420,,https://cir.nii.ac.jp/crid/1130000794624905344