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,"Social, economic, and environmental factors of transportation : 20 reports",,"Highway Research Board, National Research Council",1971,Highway research record,,,,https://cir.nii.ac.jp/crid/1130282270566907904