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
"Oloya, J. J. and Duggal, N. K. and United Nations Institute for Namibia",Agricultural economy of Namibia : strategies for structural change,,United Nations Institute for Namibia,1984,Namibia studies series,,,,https://cir.nii.ac.jp/crid/1130282273237837056