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
"Ranatunga, A. S. and Abeysekera, W. A. T. and Agrarian Research and Training Institute",Profitability and resource characteristics of paddy farming,,Agrarian Research and Training Institute,1977,Research study series,,,,https://cir.nii.ac.jp/crid/1130282269055777408