TY  - BOOK
AU  - Aitchison,Jean
TI  - The seeds of speech: language origin and evolution 
SN  - 0521785715
U1  - 401 22
PY  - 2000///
CY  - Cambridge, U.K, New York
PB  - Cambridge University Press
KW  - Language and languages
KW  - Origin
KW  - Language acquisition
KW  - Linguistic change
N1  - "Canto"--Cover; Originally published: 1996
ER  -