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
United Nations Industrial Development Organization. Sectoral Studies Branch,"The iron and steel industry of west, north and central Africa",,United Nations Industrial Development Organization,1988,Sectoral studies series,,,,https://cir.nii.ac.jp/crid/1130282272780714624