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 Round Table on Transport Economics and European Conference of Ministers of Transport. Economic Research Centre,"What role for the railways in Eastern Europe? : report of the hundred and twentieth round table on transport economics, held in Cambridge (United Kingdom) on 12th-13th September 2001 on the following topic",,European Conference of Ministers of Transport,2002,Report of the Round Table on Transport Economics,,928211371X,,https://cir.nii.ac.jp/crid/1130000796127755520