Cita APA

T C Sheng. (1989). FAO soils bulletin N.60: Soil conservation for small farmers in the humid tropics. Rome: FAO.

Chicago Style Citation

T C Sheng. FAO Soils Bulletin N.60: Soil Conservation for Small Farmers in the Humid Tropics. Rome: FAO, 1989.

Cita MLA

T C Sheng. FAO Soils Bulletin N.60: Soil Conservation for Small Farmers in the Humid Tropics. Rome: FAO, 1989.

Atenció: Aquestes cites poden no estar 100% correctes.