TY  - BOOK
AU  - Ruhlen,Merritt
TI  - The origin of language: tracing the evolution of the mother tongue 
SN  - 0471159638
U1  - 401 20
PY  - 1994///
CY  - Canada
PB  - Wiley
KW  - Language and languages
KW  - Origin
KW  - Classification
KW  - Human evolution
KW  - Ngôn ngữ
KW  - Tiếng mẹ đẻ
N1  - Includes bibliographical references (p. 216-224) and index
ER  -