APA引文

United Nations. (1999). World investment report 1999. New York: United Nations.

Trích dẫn kiểu Chicago

United Nations. World Investment Report 1999. New York: United Nations, 1999.

MLA引文

United Nations. World Investment Report 1999. New York: United Nations, 1999.

警告：这些引文格式不一定是100％准确.