Land classification province of Isabela ; sub-province of Bontoc and Ifugao.
| Format: | Map |
|---|---|
| Language: | English |
| Published: |
Manila
Bureau of Forestry
[1962].
|
| Subjects: |
| Format: | Map |
|---|---|
| Language: | English |
| Published: |
Manila
Bureau of Forestry
[1962].
|
| Subjects: |