Cita APA (7a ed.)
United Nations & United Nations. Dept. of Public Information. (1990). The Blue helmets: A review of United Nations peace-keeping (2nd ed.). United Nations, Dept. of Public Information.
Cita Chicago Style (17a ed.)
United Nations y United Nations. Dept. of Public Information. The Blue Helmets: A Review of United Nations Peace-keeping. 2nd ed. [New York, N.Y.]: United Nations, Dept. of Public Information, 1990.
Cita MLA (9a ed.)
United Nations y United Nations. Dept. of Public Information. The Blue Helmets: A Review of United Nations Peace-keeping. 2nd ed. United Nations, Dept. of Public Information, 1990.
Precaución: Estas citas no son 100% exactas.