Soil fertility management in suppor of food sercurity in Sub-Saharan Africa. (2001). Soil fertility management in suppor of food sercurity in Sub-Saharan Africa. Rome, Italy: FAO.
Chicago-tyylinen lähdeviittausSoil fertility management in suppor of food sercurity in Sub-Saharan Africa. Soil Fertility Management in Suppor of Food Sercurity in Sub-Saharan Africa. Rome, Italy: FAO, 2001.
MLA-viiteSoil fertility management in suppor of food sercurity in Sub-Saharan Africa. Soil Fertility Management in Suppor of Food Sercurity in Sub-Saharan Africa. Rome, Italy: FAO, 2001.
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