English
2 p. ℓ., 88 p. 26 cm · Crawford, Meredith P · "Published with the aid of the Rosalia Abreu Memorial Fund of the Yale Laboratories of Primate Biology." · "References": p. 87-88
Sign in with your free account to read, download EPUBs or listen.
Ebook · The coöperative solving of problems by young chimpanzees · Crawford, Meredith P. (Meredith Pullen), 1910-2002 · Internet Archive
Chimpanzees · Animal intelligence