@book{ BD03701765,
  author    = "伊藤, 智章 ",
  title     = "ランキングマップ世界地理 : 統計を地図にしてみよう",
  publisher = "筑摩書房",
  year      = "2023",
  series    = "ちくまプリマー新書",
  number    = "436",
  URL       = "https://ci.nii.ac.jp/ncid/BD03701765"
}