APA

United Nations. Department of Economic and Social Information and Policy Analysis, . (1993). World urbanization prospects the 1992 revision : estimates and projections of urban and rural populations and of urban agglomerations. New York: United Nations.

Chicago

United Nations. Department of Economic and Social Information and Policy Analysis, . 1993. World urbanization prospects the 1992 revision : estimates and projections of urban and rural populations and of urban agglomerations. New York: United Nations.

Harvard

United Nations. Department of Economic and Social Information and Policy Analysis, . (1993). World urbanization prospects the 1992 revision : estimates and projections of urban and rural populations and of urban agglomerations. New York: United Nations.

MLA

United Nations. Department of Economic and Social Information and Policy Analysis, . World urbanization prospects the 1992 revision : estimates and projections of urban and rural populations and of urban agglomerations. New York: United Nations. 1993.