@book{ BB1666892X,
  author    = "沈, 約 ",
  title     = "宋書 100卷",
  publisher = "[竹簡齋]",
  year      = "1892",
  series    = "[二十四史]",
  number    = "",
  URL       = "http://ci.nii.ac.jp/ncid/BB1666892X"
}