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. Economic Research Service,"Farm costs and returns : commercial farms by type, size, and location",Rev. [ed.],"U.S. Dept. of Agriculture, Economic Research Service",1964,Agriculture information bulletin,,,,https://cir.nii.ac.jp/crid/1130282269739347200