FAO. (1998). World soil resources reports N84: World reference base for soil resources. Rome: FAO.
Chicago Style CitationFAO. World Soil Resources Reports N84: World Reference Base for Soil Resources. Rome: FAO, 1998.
Cita MLAFAO. World Soil Resources Reports N84: World Reference Base for Soil Resources. Rome: FAO, 1998.
Atenció: Aquestes cites poden no estar 100% correctes.