@book{ BA06950549,
  author    = "Murdock, Hy and Holmes, Stephen",
  title     = "Old Macdonald's farm",
  publisher = "Ladybird",
  year      = "1985",
  series    = "Read it yourself",
  number    = "Fiction Reading level 1",
  URL       = "http://ci.nii.ac.jp/ncid/BA06950549"
}