Food and Agriculture Organization of the United Nations. (2013). Greenhouse gas emissions from pig and chicken supply chains: A global life cycle assessment. Food and Agriculture Organization of the United Nations.
芝加哥风格引文Food and Agriculture Organization of the United Nations. Greenhouse Gas Emissions from Pig and Chicken Supply Chains: A Global Life Cycle Assessment. Rome, Italy: Food and Agriculture Organization of the United Nations, 2013.
MLA引文Food and Agriculture Organization of the United Nations. Greenhouse Gas Emissions from Pig and Chicken Supply Chains: A Global Life Cycle Assessment. Food and Agriculture Organization of the United Nations, 2013.
警告：这些引文格式不一定是100％准确.