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
"Valdivia, Victor H. and Dunaway, Steven",The insurance role of social security : theory and lessons for policy reform,,International Monetary Fund,1997,IMF working paper,,,,https://cir.nii.ac.jp/crid/1130000796584916992