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
"Van de Walle, Etienne and Foster, Andrew D.",Fertility decline in Africa : assessment and prospects,,World Bank,1990,World Bank technical paper,,0821316001,,https://cir.nii.ac.jp/crid/1130282270986744960