Cita APA (7a ed.)

United Nations General Assembly. (1988). Environmental Perspective to the Year 2000 and Beyond. United Nations Environment Programme.

Cita Chicago Style (17a ed.)

United Nations General Assembly. Environmental Perspective to the Year 2000 and Beyond. Nairobi: United Nations Environment Programme, 1988.

Cita MLA (9a ed.)

United Nations General Assembly. Environmental Perspective to the Year 2000 and Beyond. United Nations Environment Programme, 1988.