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 United States. Congressional Budget Office,Using pricing to reduce traffic congestion,,"Congress of the United States, Congressional Budget Office",2009,A CBO study,,9780160827907,,https://cir.nii.ac.jp/crid/1130000794713278592