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
"Olokesusi, Femi",Estimating the benefits of environmental protection : an application of the willingness-to-pay approach to dam and irrigation projects in Nigeria,,Nigerian Institute of Social and Economic Research (NISER),1992,N.I.S.E.R monograph series,,9781810092,,https://cir.nii.ac.jp/crid/1130282269141331072