(2020). World food and agriculture statistical pocketbook 2020: Food and Agriculture Organization of the United Nations. FAO.
Chicago-Zitierstil (17. Ausg.)World Food and Agriculture Statistical Pocketbook 2020: Food and Agriculture Organization of the United Nations. Rome: FAO, 2020.
MLA-Zitierstil (8. Ausg.)World Food and Agriculture Statistical Pocketbook 2020: Food and Agriculture Organization of the United Nations. FAO, 2020.
警告:这些引文格式不一定是100%准确.