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
"Abeyratne, Fredrick and Gunasena, H. P. M. and Tennakoon, D. and Agrarian Research and Training Institute",Shifting farming : towards stability : a study of four rainfed farming systems in Sri Lanka,,Agrarian Research and Training Institute,1986,Research study series,,,,https://cir.nii.ac.jp/crid/1130000796550746496