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 "Addison, Tony and Billon, Philippe Le and Murshed, Syed Mansoob and World Institute for Development Economics Research and United Nations University",Conflict in Africa : the cost of peaceful behaviour,,"World Institute for Development Economics Research, United Nations University",2001,WIDER discussion paper,,9524552264,,https://cir.nii.ac.jp/crid/1130000793818726400