@book{ BA19339858,
  author    = "Hall, Margaret, Lady",
  title     = "The small unit in the distributive trades",
  publisher = "H.M. Stationery Off.",
  year      = "1971",
  series    = "Research report",
  number    = "no. 8",
  URL       = "https://ci.nii.ac.jp/ncid/BA19339858"
}