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
Great Britain. Dept. of Social Security,"Options for equality in state pension age : presented to Parliament by the Secretary of State for Social Security by Command by Her Majesty, December, 1991",,HMSO,1991,Cm,,010117232X,,https://cir.nii.ac.jp/crid/1130000797497166336