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
"Powell, John Duncan",The role of the Federación Campesina in the Venezuelan agrarian reform process,,University of Wisconsin. Land Tenure Center,1967,Research paper,,,,https://cir.nii.ac.jp/crid/1130282271724435200