APA aipamena

FAO. (1989). FAO agriculture series; N22: The state of food and agriculture. Rome: FAO.

Chicago Style aipamena

FAO. FAO Agriculture Series; N22: The State of Food and Agriculture. Rome: FAO, 1989.

MLA aipamena

FAO. FAO Agriculture Series; N22: The State of Food and Agriculture. Rome: FAO, 1989.

Kontuz: berrikusi erreferentzia hauek erabili aurretik.