TY  - BOOK
T1  - Science understanding your environment, teacher's ed.
A1  - Mallinson, George
LA  - English
PP  - Morristown, NJ
PB  - Silver Burdett
YR  - 1972
UL  - https://ds.mainlib.upd.edu.ph/Record/UP-99796217606720710
CN  - Q 181 M36 1972- T Ed.
ER  -