TY  - BOOK
AU  - Geest,T.der van
AU  - Gerstel,R.
AU  - Appel,R.
AU  - Tervoort,B.Th
TI  - Child's communicative competence
AV  - P136.C5 
PY  - 1975///
CY  - The Hague
PB  - Mouton
KW  - Language acquisition
N1  - Includes bibliographical references
ER  -