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,Traffic control : devices and delineation ; 7 reports,,"Highway Research Board, Division of Engineering and Industrial Research",1966,Highway research record,,,,https://cir.nii.ac.jp/crid/1130000796197633024