@book{ BA61323721,
  author    = "友永, 雅己 and 田中, 正之  and 松沢, 哲郎 ",
  title     = "チンパンジーの認知と行動の発達",
  publisher = "京都大学学術出版会",
  year      = "2003",
  URL       = "https://ci.nii.ac.jp/ncid/BA61323721"
}