TY  - BOOK
T1  - Communities Student manual.
T2  - Science Curriculum Improvement Study
LA  - English
PP  - Berkeley, CA
PB  - Science Curriculum Improvement Study
YR  - 1969
ED  - Trial ed.
UL  - https://tuklas.up.edu.ph/Record/UP-99796217606706504
OP  - 15
CN  - Q 181 S5 C66 1969 S.M.
KW  - Science : Study and teaching (Elementary).
KW  - Biotic communities.
ER  -