Curious naturalists / Niko Tinbergen. - The American Museum of Natural History special members' ed.. - Garden City : Anchor Books : Doubleday and Comp., Inc., 1969. - viii, 301 p. : ill. ; 18 cm.см.. - (The natural history library). - ბიბლიოგრ.: გვ. 292-295[MFN: 46170]