APA引文

FAO. (1991). FAO publications catalogue: 1991. Rome: FAO.

Trích dẫn kiểu Chicago

FAO. FAO Publications Catalogue: 1991. Rome: FAO, 1991.

MLA引文

FAO. FAO Publications Catalogue: 1991. Rome: FAO, 1991.

警告：这些引文格式不一定是100％准确.