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
"Keyfitz, Nathan",Decomposition and reassembly of the age-time distribution,,Nihon University Population Research Institute,1989,NUPRI research paper series,,,,https://cir.nii.ac.jp/crid/1130282271579852800