PRINCIPLES OF NATURE CONSERVATION
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BTNATURE CONSERVATION
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UDC503,11
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Descriptor GERGRUNDLAGEN DES NATURSCHUTZES
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Descriptor ENGPRINCIPLES OF NATURE CONSERVATION
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Descriptor FREPRINCIPES DE LA PROTECTION DE LA NATURE
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Variant GERNATURSCHUTZ/GRUNDLAGEN
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Variant ENGNATURE CONSERVATION/PRINCIPLES
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Variant FREPROTECTION DE LA NATURE/BASES
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NTDATA COLLECTION AND EVALUATION (NATURE PROTECTION)
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NTHISTORY OF NATURE CONSERVATIONNATURE CONSERVATION/HISTORICAL ASPECTS
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NTSOCIAL ASPECTS OF NATURE CONSERVATION
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NTINTERNATIONAL AND INTERREGIONAL COOPERATION IN NATURE CONSERVATION
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NTLAND USE (NATURE CONSERVATION)
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NTNATURE CONSERVATION/ECONOMIC ASPECTS
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NTNATURE CONSERVATION RESEARCH
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NTPUBLIC NATURE CONSERVATION