TY  - BOOK
AU  - Lightfoot,David
TI  - The development of language : acquisition, change, and evolution
SN  - 0631210601
AV  - P142 L533D
PY  - 1999///
CY  - Malden, Mass.
PB  - Blackwell
KW  - LINGUISTIC CHANGE
KW  - LANGUAGE ACQUISITION
KW  - GRAMMAR, COMPARATIVE AND GENERAL
KW  - LANGUAGE AND LANGUAGES
KW  - ORIGIN
ER  -