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|---|---|---|---|---|---|
| 1 | integrated environmental management | 統合的環境管理 | |||
| 2 | Study on Integrated Environmental Management for the Maritza River Basin, Bulgaria | マリッツァ川流域環境保全対策計画 | |||
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|---|---|---|---|---|---|
| 1 | integrated environmental management | 統合的環境管理 | |||
| 2 | Study on Integrated Environmental Management for the Maritza River Basin, Bulgaria | マリッツァ川流域環境保全対策計画 | |||