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: capacity, delay and quality of service : 5 reports",,"Highway Research Board, National Research Council",1973,Highway research record,,0309021863,,https://cir.nii.ac.jp/crid/1130000794846701952