Cita APA (7th ed.)

United Nations Environment Programme. (2019). GEO-6: Global environment outlook : healthy planet, healthy people. Cambridge University Press.

Cita Chicago (17th ed.)

United Nations Environment Programme. GEO-6: Global Environment Outlook : Healthy Planet, Healthy People. Cambridge, United Kingdom ; New York, NY: Cambridge University Press, 2019.

Cita MLA (9th ed.)

United Nations Environment Programme. GEO-6: Global Environment Outlook : Healthy Planet, Healthy People. Cambridge University Press, 2019.