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
"Pennings, F. (Frans)",Between soft and hard law : the impact of international social security standards on national social security law,,Kluwer Law International,2006,Studies in employment and social policy,,9041124918,,https://cir.nii.ac.jp/crid/1130282270153882880