APA引文

Knutson, C. (1998). How to reduce drought risk. Western Drought Cooodination Council.

Trích dẫn kiểu Chicago

Knutson, Cody. How to Reduce Drought Risk. Western Drought Cooodination Council, 1998.

MLA引文

Knutson, Cody. How to Reduce Drought Risk. Western Drought Cooodination Council, 1998.

警告：這些引文格式不一定是100％准確.