Programme, U. N. E. (2012). Africa: Atlas of our Changing Environment. United Nations Environment Programme.
Trích dẫn kiểu ChicagoProgramme, 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:这些引文格式不一定是100%准确.