APA引文

FAO. (1989). FAO conservation guide N.21: Role of forestry in combating desertification. Rome: FAO.

Trích dẫn kiểu Chicago

FAO. FAO Conservation Guide N.21: Role of Forestry in Combating Desertification. Rome: FAO, 1989.

MLA引文

FAO. FAO Conservation Guide N.21: Role of Forestry in Combating Desertification. Rome: FAO, 1989.

警告：这些引文格式不一定是100％准确.