APA引文

The United Nations. (2009). The United Nations today. United Nations Department of Public Information.

芝加哥风格引文

The United Nations. The United Nations Today. New York: United Nations Department of Public Information, 2009.

MLA引文

The United Nations. The United Nations Today. United Nations Department of Public Information, 2009.

警告：这些引文格式不一定是100％准确.