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
"Dunham, David and Arunatilake, Nisha and Perera, Roshan and Institute of Policy Studies (Colombo, Sri Lanka)",The labour situation on Sri Lankan tea estates : a view to 2005,,Institute of Policy Studies,1997,Research studies,,955912255X,,https://cir.nii.ac.jp/crid/1130000796159977088