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
"Holmberg, Johan",Grain marketing and land reform in Ethiopia : an analysis of the marketing and pricing of food grains in 1976 after the land reform,,Scandinavian Institute of African Studies,1977,Research report,,9171061134,,https://cir.nii.ac.jp/crid/1130282269546916736