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 "Walshe, Michael J. and International Bank for Reconstruction and Development",Dairy development in Sub-Saharan Africa : a study of issues and options,,World Bank,1991,World Bank technical paper,,0821317814,,https://cir.nii.ac.jp/crid/1130000794229809024