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. Agricultural Research Service. Production Economics Research Branch and United States. Dept. of Agriculture,"Agricultural land resources in the United States, with special reference to present and potential cropland and pasture",,U.S. Dept. of Agriculture,1955,Agriculture information bulletin,,,,https://cir.nii.ac.jp/crid/1130282269226163456