@book{ BA69678899,
  author    = "東北大学大学院文学研究科21世紀COEプログラム社会階層と不平等研究教育拠点",
  title     = "Stratification and inequality series",
  publisher = "Trans Pacific Press",
  year      = "",
  URL       = "https://ci.nii.ac.jp/ncid/BA69678899"
}