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 United Nations. Dept. of International Economic and Social Affairs,Step-by-step guide to the estimation of child mortality,,United Nations,1990,Population studies,,9211511836,,https://cir.nii.ac.jp/crid/1130282270681002752