Response to the earth summit implementing the Philippine agenda 21 for sustainable development : conference report, 31 August - 01 September 1992, Hyatt Regency, Manila.
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|---|---|
| フォーマット: | 図書 |
| 言語: | English |
| 出版事項: |
[Quezon City
DENR
1992?].
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| 主題: |