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,The role of the state in a deregulated transport market,,"European Conference of Ministers of Transport,Distributed by the OECD Publications Service",1991,Report of the Round Table on Transport Economics,,9282111512,,https://cir.nii.ac.jp/crid/1130282268645133056