APA引文

FAO. (1990). Food and agricultural legislation N.39. Rome: FAO.

Trích dẫn kiểu Chicago

FAO. Food and Agricultural Legislation N.39. Rome: FAO, 1990.

MLA引文

FAO. Food and Agricultural Legislation N.39. Rome: FAO, 1990.

警告：这些引文格式不一定是100％准确.