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 International Labour Conference,"General survey of the reports relating to the Social Security (Minimum Standards) Convention (no. 102), 1952, the Invalidity, Old-Age and Survivors' Benefits Convetion (no. 128) and Recommendation (no. 131), 1967, in so far as they apply to old-age benefits",,International Labour Office,1989,Report,,9221066592,,https://cir.nii.ac.jp/crid/1130282270706985344