APA aipamena

FAO. (1976). Soil conservation for developing countries. Rome: FAO.

Chicago Style aipamena

FAO. Soil Conservation for Developing Countries. Rome: FAO, 1976.

MLA aipamena

FAO. Soil Conservation for Developing Countries. Rome: FAO, 1976.

Kontuz: berrikusi erreferentzia hauek erabili aurretik.