Não informado. (1972). FAO documentation. Food and Agriculture Organization of the United Nations.
Chicago-Zitierstil (17. Ausg.)Não informado. FAO Documentation. Rome: Food and Agriculture Organization of the United Nations, 1972.
MLA-Zitierstil (8. Ausg.)Não informado. FAO Documentation. Food and Agriculture Organization of the United Nations, 1972.
Achtung: Diese Zitate sind unter Umständen nicht zu 100% korrekt.