TY  - BOOK
T1  - Proceedings.
LA  - English
PP  - Manila
PB  - National Research and Development Center for Teacher Education, Ministry of Education and Culture
YR  - 1980
UL  - https://tuklas.up.edu.ph/Record/UP-99796217603751432
OP  - 206
CN  - LB 1117 N39 1979
KW  - Child study : Congresses.
ER  -