FAO. (2001). The economics of soil productivity in sub-Saharan Africa. Rome: FAO.
Trích dẫn kiểu ChicagoFAO. The Economics of Soil Productivity in Sub-Saharan Africa. Rome: FAO, 2001.
MLA CitationFAO. The Economics of Soil Productivity in Sub-Saharan Africa. Rome: FAO, 2001.
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