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,"Traffic safety : roundabouts, trucks, older drivers, and traffic law enforcement",,Transportation Research Board of the National Academies,2009,Transportation research record,,9780309126120,,https://cir.nii.ac.jp/crid/1130000797271593600