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Karen Frenken
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Cilt sonuçları
Irrigation In Southern And Eastern Asia In Figures Aquastat Survey 2011
Karen Frenken · Food & Agriculture Organization of the United
487 sayfa · 2012
Irrigation / Water-supply, Agricultural / Statistics / Irrigation, asia / Asia, statistics
Irrigation potential in Africa
Karen Frenken · Food and Agriculture Organization of the United Nations
177 sayfa · 1997
Soil surveys / Soils / Irrigation / Water-supply, Agricultural / Land capability for agriculture