TY  - BOOK
T1  - Environmental issues in the decade 1990-2000 their implications for education.
LA  - English
PP  - S.l.
PB  - s.n.
YR  - 1990
UL  - https://tuklas.up.edu.ph/Record/UP-99796217604568161
OP  - 69
NO  - Proceedings of the symposium jointly sponsored by the U.P. Educational Alumni Association and the U.P. College of Education.
CN  - TD 169 E57
KW  - Environmental protection : Philippines : Congresses.
KW  - Human ecology : Study and teaching : Philippines.
ER  -