OECD (ed.). Key environmental indicators. Paris, 2004.
| PDF: | OECD_Key_env_indicators.pdf (976.985 Bytes) |
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| Coastal databases provided and maintained by EUCC - The Coastal Union Germany |  |
| PDF: | OECD_Key_env_indicators.pdf (976.985 Bytes) |
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| Coastal databases provided and maintained by EUCC - The Coastal Union Germany | |