APA引文

R A.J Roberts. (1989). FAO agricultural servicies bulletin; N78: Crop insurance. Rome: FAO.

Trích dẫn kiểu Chicago

R A.J Roberts. FAO Agricultural Servicies Bulletin; N78: Crop Insurance. Rome: FAO, 1989.

MLA引文

R A.J Roberts. FAO Agricultural Servicies Bulletin; N78: Crop Insurance. Rome: FAO, 1989.

警告：这些引文格式不一定是100％准确.