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| ecological priorities - choice (1) |
| environmental protection - regional programs (1) |
| environmental protection - regional programs - implementation (1) |
| monitoring ochrony środowiska (1) |
| monitoring of environmental protection (1) |
| ochrona środowiska - regionalne programy (1) |
| ochrona środowiska - regionalne programy - realizacja (1) |
| priorytety ekologiczne - wybór (1) |