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
"Walker, T. S. and Jodha, N. S. and International Crops Research Institute for the Semi-Arid Tropics",Efficiency of risk management by small farmers and implications for crop insurance,,International Crops Research Institute for the Semi-Arid Tropics,1982,Economics program,,,,https://cir.nii.ac.jp/crid/1130282273253480064