Towards 2000 A.D. human life and resource management : proceedings of the symposium on Natural Resources, May 19, June 3-4, 1976.
| Formatua: | Liburua |
|---|---|
| Argitaratua: |
[Tagaytay City]
DAP
1976.
|
| Gaiak: |
| Formatua: | Liburua |
|---|---|
| Argitaratua: |
[Tagaytay City]
DAP
1976.
|
| Gaiak: |