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 "Zhang, Xiaobo and Fan, Shenggen",How productive is infrastructure? new approach and evidence from rural India,,Environment and Production Technology Division. International Food Policy Research Institute,2001,EPTD discussion paper,,,,https://cir.nii.ac.jp/crid/1130282269328486784