TY  - BOOK
AU  - Perera,Katharine
AU  - Collis,Glyn
AU  - Richards,Brian J.
TI  - Growing points in child language
SN  - 0521469066 (pbk) :
U1  - 401.9 
PY  - 1994///
CY  - Cambridge
PB  - The University Press
KW  - Language acquisition
N1  - Includes bibliographical references and index
ER  -