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) Derek Neal,Chapter 9 Why Has Black–White Skill Convergence Stopped?,Handbook of the Economics of Education,1574-0692,Elsevier,2006,,,511-576,https://cir.nii.ac.jp/crid/1360574093619036928,https://doi.org/10.1016/s1574-0692(06)01009-9