TY  - BOOK
AU  - Singleton,DM
TI  - Language acquisition: the age factor
T2  - Multilingual matters
SN  - 1853590207
PY  - 1989///
CY  - Clevedon, Avon
PB  - Multilingual Matters
KW  - Language acquisition
KW  - Age factors
KW  - Language and languages
KW  - Study and teaching
N1  - Includes index; Bibliography: p. 265-311
ER  -