APA引文

United Nations. (1975). Machine tools in Asia and the Pacific. New York: United Nations.

Trích dẫn kiểu Chicago

United Nations. Machine Tools in Asia and the Pacific. New York: United Nations, 1975.

MLA引文

United Nations. Machine Tools in Asia and the Pacific. New York: United Nations, 1975.

警告：这些引文格式不一定是100％准确.