Não informado. (1947). State of food and agriculture. Food and Agriculture Organization of the United Nations.
Chicago-referens (17:e uppl.)Não informado. State of Food and Agriculture. Rome: Food and Agriculture Organization of the United Nations, 1947.
MLA-referens (8:e uppl.)Não informado. State of Food and Agriculture. Food and Agriculture Organization of the United Nations, 1947.
Varning: dessa hänvisningar är inte alltid fullständigt riktiga.