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George H Hargreaves
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Cilt sonuçları
Irrigation fundamentals
George H. Hargreaves · Water Resources Publication, LLC
182 sayfa · 1998
Irrigation / Water-supply, Agricultural / Irrigation scheduling
Programmes d'eau et de conservation pour le Cap Vert
George H. Hargreaves · L'Agence américaine pour le développement international
48 sayfa · 1980
Soil conservation / Water conservation / Conservation of natural resources
Water and conservation programs for Cape Verde
George H. Hargreaves · Agency for International Development
56 sayfa · 1980
Soil conservation / Water conservation / Conservation of natural resources