APA (7e ed.) Bronvermelding

Não informado. World environment report. Center for International Environment Information.

Chicago (17e ed.) Bronvermelding

Não informado. World Environment Report. New York: Center for International Environment Information.

MLA (8e ed.) Bronvermelding

Não informado. World Environment Report. Center for International Environment Information.

Let op: Deze citaties zijn niet altijd 100% accuraat.