Παραπομπή σε μορφή APA (7η εκδ.)

Food and Agriculture Organization of the United Nations Land and Water Development Division. (1996). Agro-ecological zoning: Guidelines. F.A.O..

Παραπομπή σε μορφή Chicago (17η εκδ.)

Food and Agriculture Organization of the United Nations Land and Water Development Division. Agro-ecological Zoning: Guidelines. Rome: F.A.O., 1996.

Παραπομπή σε μορφή MLA (9th εκδ.)

Food and Agriculture Organization of the United Nations Land and Water Development Division. Agro-ecological Zoning: Guidelines. F.A.O., 1996.