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
"Valdés, Alberto and International Food Policy Research Institute and International Maize and Wheat Improvement Center",Food security for developing countries,,Westview Press,1981,A Westview special study,,0865310718,,https://cir.nii.ac.jp/crid/1130282270431016704