T C Sheng. (1989). FAO soils bulletin N.60: Soil conservation for small farmers in the humid tropics. Rome: FAO.
シカゴスタイル引用形T C Sheng. FAO Soils Bulletin N.60: Soil Conservation for Small Farmers in the Humid Tropics. Rome: FAO, 1989.
MLA引用形式T C Sheng. FAO Soils Bulletin N.60: Soil Conservation for Small Farmers in the Humid Tropics. Rome: FAO, 1989.
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