著者名,論文名,雑誌名,ISSN,出版者名,出版日付,巻,号,ページ,URL,URL(DOI)
TL Youd,Factors Controlling Maximum and Minimum Densities of Sands,Evaluation of Relative Density and its Role in Geotechnical Projects Involving Cohesionless Soils,,ASTM International,1973,523,,98,https://cir.nii.ac.jp/crid/1363388844405668864,https://doi.org/10.1520/stp37866s