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 Road Research Laboratory. Department of the Environment,A guide to the structural design of pavements for new roads,3rd ed,H.M.S.O,1970,Road notes,,0115501584,,https://cir.nii.ac.jp/crid/1130000795484621952