@book{ BN06028777,
  author    = "武田, 鼎一",
  title     = "新景気観測論",
  publisher = "甲文堂書店",
  year      = "1936",
  series    = "最近経済問題叢書",
  number    = "",
  URL       = "https://ci.nii.ac.jp/ncid/BN06028777"
}