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
"Selig, E. T. (Ernest Theodore) and Ladd, R. S. and ASTM Committee D-18 on Soil and Rock for Engineering Purposes",Evaluation of relative density and its role in geotechnical projects involving cohesionless soils,,American Society for Testing and Materials,1973,ASTM special technical publication,,,,https://cir.nii.ac.jp/crid/1130000796245638400