APA引文

Programme, U. N. E. (2012). Africa: Atlas of our Changing Environment. United Nations Environment Programme.

Trích dẫn kiểu Chicago

Programme, United Nations Environment. Africa: Atlas of Our Changing Environment. United Nations Environment Programme, 2012.

MLA引文

Programme, United Nations Environment. Africa: Atlas of Our Changing Environment. United Nations Environment Programme, 2012.

警告：這些引文格式不一定是100％准確.