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
"Kumar, Ramesh C. and Research and Information System for the Non-aligned and Other Developing Countries","Agricultural surplus, variable land, and long-run growth in an open dual economy",,Research and Information System for the Non-aligned and Other Developing Countries,1987,RIS occasional paper,,,,https://cir.nii.ac.jp/crid/1130282269305981568