APA
United Nations, . (1995). Compendium of human settlements statistics,1991. New York: United Nations.
Chicago
United Nations, . 1995. Compendium of human settlements statistics,1991. New York: United Nations.
Harvard
United Nations, . (1995). Compendium of human settlements statistics,1991. New York: United Nations.
MLA
United Nations, . Compendium of human settlements statistics,1991. New York: United Nations. 1995.