TY  - BOOK
AU  - Ingram,David
TI  - First language acquisition : method, description, and explanation
SN  - 0521341094
AV  - P118.I44 1989 
U1  - 401/.9 19
PY  - 1989///
CY  - Cambridge [England], New York
PB  - Cambridge University Press
KW  - Language acquisition
N1  - Includes indexes; Bibliography: p. 519-548
UR  - http://www.loc.gov/catdir/toc/cam023/88016215.html
UR  - http://www.loc.gov/catdir/description/cam023/88016215.html
ER  -