Cita APA

FAO. (1993). FAO soils bulletin N.69: Soil tillage in Africa: needs and challenges. Rome: FAO.

Chicago Style Citation

FAO. FAO Soils Bulletin N.69: Soil Tillage in Africa: Needs and Challenges. Rome: FAO, 1993.

Cita MLA

FAO. FAO Soils Bulletin N.69: Soil Tillage in Africa: Needs and Challenges. Rome: FAO, 1993.

Atenció: Aquestes cites poden no estar 100% correctes.