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 "Sugden, Robert",Who cares? : an economic and ethical analysis of private charity and the welfare state,,Institute of Economic Affairs,1983,Occasional paper,,025536167X,,https://cir.nii.ac.jp/crid/1130000793692273024