APA
United Nations. Department of Economics and Social Affairs, . (1969). Basics of housing management. New York: United Nations.
Chicago
United Nations. Department of Economics and Social Affairs, . 1969. Basics of housing management. New York: United Nations.
Harvard
United Nations. Department of Economics and Social Affairs, . (1969). Basics of housing management. New York: United Nations.
MLA
United Nations. Department of Economics and Social Affairs, . Basics of housing management. New York: United Nations. 1969.