Food and Agriculture Organization of the United Nations. (1989). Forestry and food security. Food and Agriculture Organization of the United Nations.
芝加哥风格引文Food and Agriculture Organization of the United Nations. Forestry and Food Security. Rome: Food and Agriculture Organization of the United Nations, 1989.
MLA引文Food and Agriculture Organization of the United Nations. Forestry and Food Security. Food and Agriculture Organization of the United Nations, 1989.
警告：这些引文格式不一定是100％准确.