APA (7th ed.) Citation

United Nations Environment Programme. The State of the world environment. United Nations Environment Programme.

Chicago Style (17th ed.) Citation

United Nations Environment Programme. The State of the World Environment. Nairobi, Kenya: United Nations Environment Programme.

MLA (9th ed.) Citation

United Nations Environment Programme. The State of the World Environment. United Nations Environment Programme.

Warning: These citations may not always be 100% accurate.