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 National Research Council (U.S.). Highway Research Board,Motorist information systems : 8 reports,,"Highway Research Board, National Research Council",1972,Highway research record,,0309020867,,https://cir.nii.ac.jp/crid/1130000796644182272