Geology and oil possibilities of the Philippines
| Prif Awdur: | |
|---|---|
| Fformat: | Llyfr |
| Iaith: | English |
| Cyhoeddwyd: |
Manila
Bureau of Print.
1951.
|
| Cyfres: | Philippines (Republic) Department of Agriculture and Natural Resources. Technical bulletin
no. 21 |
| Pynciau: |