TY  - BOOK
TI  - Mga yamang-lupa (Land resources) [chart]
U1  - 333.731 Y146 2000 
PY  - 2001///
N2  - 1. Gold
2. Silver
3. Diamond
4. Quartz
5. Galena
6. Graphite
7. Kaolin
8. Magnetite
9. Torbernite
10. Mineral Oil
11. Coal
ER  -