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 "Nairobi, University of. Institute for Development Studies and Haugerud, Angelique",Economic differentiation among peasant households : a comparison of Embu coffee and cotton zones,,"Institute for Development Studies, University of Nairobi",1981,Working paper,,,,https://cir.nii.ac.jp/crid/1130282272702059392