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 States. Dept. of Agriculture. Economics and Statistics Service,Selected agricultural statistics on Portugal,,"U.S. Dept. of Agriculture, Enonomics and Statistics Service",1981,Statistical bulletin,,,,https://cir.nii.ac.jp/crid/1130000794245790080