TY  - THES
T1  - Teaching materials on natural resources with focus on the Philippines
A1  - Rivera, Nenita Castillo 1948-
LA  - English
YR  - 1983
UL  - https://ds.mainlib.upd.edu.ph/Record/UP-99796217609008498
NO  - Vita.
CN  - LG 995 1983 E34 R38
KW  - Natural resources : Study and teaching (Secondary) : Philippines.
KW  - Social sciences : Study and teaching (Secondary) : Philippines.
KW  - Teaching : Philippines : Aids and devices.
ER  -