TY  - BOOK
AU  - Ingram,David
TI  - First language acquisition: method, description, and explanation 
SN  - 0521341094
U1  - 401.9 
PY  - 1989///
CY  - Cambridge
PB  - The University Press
KW  - Language acquisition
KW  - Language and languages
KW  - Congress
N1  - Includes bibliographical references and index
ER  -