@book{ BA88240829,
  author    = "Kuczynski, R. (Robert)",
  title     = "The new population statistics",
  publisher = "Cambridge at the University Press",
  year      = "1942",
  series    = "Occasional papers / National Institute of Economic and Social Research",
  number    = "1",
  URL       = "https://ci.nii.ac.jp/ncid/BA88240829"
}