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 "Ravallion, Martin and World Institute for Development Economics Research and United Nations University",Externalities in rural development evidence for China,,"World Institute for Development Economics Research, United Nations University",2003,WIDER discussion paper,,9291904945,,https://cir.nii.ac.jp/crid/1130282272912045440