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 European Conference of Ministers of Transport. Economic Research Centre and Round Table on Transport Economics,Charging for the use of urban roads,,European Conference of Ministers of Transport,1994,Report of the Round Table on Transport Economics,,,,https://cir.nii.ac.jp/crid/1130000793710878464