APA引文

(1973). The iron and steel industry in the developing countries. New York: United Nations.

Trích dẫn kiểu Chicago

The Iron and Steel Industry in the Developing Countries. New York: United Nations, 1973.

MLA引文

The Iron and Steel Industry in the Developing Countries. New York: United Nations, 1973.

警告：这些引文格式不一定是100％准确.