Tietueen sitaatit
APA-viiteUnited Nations. Department of International Economic and Social Affairs. (1991). Concise report on the world population situation in 1991: With a special emphasis on age structure. United Nations.
Chicago-tyylinen lähdeviittausUnited Nations. Department of International Economic and Social Affairs. Concise Report on the World Population Situation in 1991: With a Special Emphasis on Age Structure. New York [N.Y.]: United Nations, 1991.
MLA-viiteUnited Nations. Department of International Economic and Social Affairs. Concise Report on the World Population Situation in 1991: With a Special Emphasis on Age Structure. United Nations, 1991.
Harvard-tyylinen lähdeviittausUnited Nations. Department of International Economic and Social Affairs. 1991. Concise report on the world population situation in 1991: With a special emphasis on age structure. New York [N.Y.]: United Nations.