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Togo. Carte des Aptitudes Culturales des Sols de la Région des Savanes Productivité Potentielle. Feuille no. 5. Continent: AfricaCountry: Togo
Kaduna Plains. Nigeria. Crop Options, Based on Environmental Limitations. Map 3b. D.O.S. 3261F. Continent: AfricaCountry: Nigeria