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
"Chambers, Robert and Leach, Melissa and University of Sussex. Institute of Development Studies",Trees to meet contingencies : saving and security for the rural poor,,"Institute of Development Studies, University of Sussex",1987,Discussion paper,,,,https://cir.nii.ac.jp/crid/1130000797280165376