Não informado. (1991). Food, Nutrition and Agriculture. Food and Agriculture Organization of the United Nations.
Chicago (17e ed.) BronvermeldingNão informado. Food, Nutrition and Agriculture. Roma: Food and Agriculture Organization of the United Nations, 1991.
MLA (8e ed.) BronvermeldingNão informado. Food, Nutrition and Agriculture. Food and Agriculture Organization of the United Nations, 1991.
Let op: Deze citaties zijn niet altijd 100% accuraat.