@book{ BA50519696,
  author    = "岡本, 理一  and 北海道労働部労政課",
  title     = "日本経済からみた中小企業",
  publisher = "北海道労働文化協会",
  year      = "1961",
  series    = "通信労働教育講座",
  number    = "第11回",
  URL       = "https://ci.nii.ac.jp/ncid/BA50519696"
}