SANDY DESERTS (REGIONAL GEOGRAPHY)
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BTUNPRODUCTIVE LAND (REGIONAL GEOGRAPHY)
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UDC913(252.33)
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Descriptor GERSANDWÜSTENGEBIETE (REGIONALE GEOGRAFIE)
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Descriptor ENGSANDY DESERTS (REGIONAL GEOGRAPHY)
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Descriptor FREDÉSERTS DE SABLE (GÉOGRAPHIE RÉGIONALE)
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NTOASES (REGIONAL GEOGRAPHY)