Cita APA (7a ed.)

Nacions Unides. (1990). Global outlook 2000: An economic, social, and environmental perspective. United Nations.

Cita Chicago Style (17a ed.)

Nacions Unides. Global Outlook 2000: An Economic, Social, and Environmental Perspective. [s.l.]: United Nations, 1990.

Cita MLA (9a ed.)

Nacions Unides. Global Outlook 2000: An Economic, Social, and Environmental Perspective. United Nations, 1990.