APA
United Nations Centre for Human Settlements (HABITAT), . (2001). The state of the world`s cities. New York: United Nations Centre for Human Settlements (HABITAT): .
Chicago
United Nations Centre for Human Settlements (HABITAT), . 2001. The state of the world`s cities. New York: United Nations Centre for Human Settlements (HABITAT): .
Harvard
United Nations Centre for Human Settlements (HABITAT), . (2001). The state of the world`s cities. New York: United Nations Centre for Human Settlements (HABITAT): .
MLA
United Nations Centre for Human Settlements (HABITAT), . The state of the world`s cities. New York: United Nations Centre for Human Settlements (HABITAT): . 2001.
