APA
United Nations Department of Economic and Social Affairs, . (1973). (An)economic framework for investment planning in housing and urban infrastructure. New York: The Author.
Chicago
United Nations Department of Economic and Social Affairs, . 1973. (An)economic framework for investment planning in housing and urban infrastructure. New York: The Author.
Harvard
United Nations Department of Economic and Social Affairs, . (1973). (An)economic framework for investment planning in housing and urban infrastructure. New York: The Author.
MLA
United Nations Department of Economic and Social Affairs, . (An)economic framework for investment planning in housing and urban infrastructure. New York: The Author. 1973.