WATER PROTECTION (NATURE CONSERVATION)
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BTWETLANDS (NATURE CONSERVATION)
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UDC503,126.231
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Descriptor GERGEWÄSSERSCHUTZ (NATURSCHUTZ)
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Descriptor ENGWATER PROTECTION (NATURE CONSERVATION)
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Descriptor FREPROTECTION DES COURS D'EAU (PROTECTION DE LA NATURE)
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Variant GERGEWÄSSER/NATURSCHUTZ
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Variant FRECOURS D'EAU/PROTECTION DE LA NATURE
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NTOCEANS AND MARINE COASTS (NATURE CONSERVATION)
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NTFRESHWATER (NATURE CONSERVATION)