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,"Effects of traffic control devices : presented at the 38th annual meeting january 5-9, 1959",,National Academy of Sciences - National Research Council,1960,Highway research board,,,,https://cir.nii.ac.jp/crid/1130282270990042240