T C Sheng. (1989). FAO soils bulletin N.60: Soil conservation for small farmers in the humid tropics. Rome: FAO.
Chicago Style citaatT C Sheng. FAO Soils Bulletin N.60: Soil Conservation for Small Farmers in the Humid Tropics. Rome: FAO, 1989.
MLA citatieT C Sheng. FAO Soils Bulletin N.60: Soil Conservation for Small Farmers in the Humid Tropics. Rome: FAO, 1989.
Let op: Deze citaties zijn niet altijd 100% accuraat.