APA引文

FAO. (1991). FAO terminology bulletin; N.20; rev.9: Names of countries. Rome: FAO.

Trích dẫn kiểu Chicago

FAO. FAO Terminology Bulletin; N.20; Rev.9: Names of Countries. Rome: FAO, 1991.

MLA引文

FAO. FAO Terminology Bulletin; N.20; Rev.9: Names of Countries. Rome: FAO, 1991.

警告：这些引文格式不一定是100％准确.