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
"Ruff, Samuel and United States. Dept. of Agriculture. Economic Research Service","Agricultural progress in Ecuador, 1970-82",,"Economic Research Service, U.S. Dept. of Agriculture",1984,Foreign agricultural economic report,,,,https://cir.nii.ac.jp/crid/1130282271933443072