FAO. (1999). Water soil resources reports; N85: Soil fertility initiative for sub-Sahảan Africa. Rome: FAO.
Chicago Style CitationFAO. Water Soil Resources Reports; N85: Soil Fertility Initiative for Sub-Sahảan Africa. Rome: FAO, 1999.
Cita MLAFAO. Water Soil Resources Reports; N85: Soil Fertility Initiative for Sub-Sahảan Africa. Rome: FAO, 1999.
Atenció: Aquestes cites poden no estar 100% correctes.