Não informado. (1991). Food, Nutrition and Agriculture. Food and Agriculture Organization of the United Nations.
Chicago-Zitierstil (17. Ausg.)Não informado. Food, Nutrition and Agriculture. Roma: Food and Agriculture Organization of the United Nations, 1991.
MLA-Zitierstil (8. Ausg.)Não informado. Food, Nutrition and Agriculture. Food and Agriculture Organization of the United Nations, 1991.
Achtung: Diese Zitate sind unter Umständen nicht zu 100% korrekt.