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.). Transportation Research Board and Symposium on Visibility Criteria for Signs, Signals, and Roadway Lighting (1988 : Minneapolis, Minn.)","Visibility criteria for signs, signals, and roadway lighting",,"Transportation Research Board, National Research Council",1989,Transportation research record,,0309049725,,https://cir.nii.ac.jp/crid/1130282271337153152