APA (7. basım) Alıntı

United Nations Environment Programme. (2002). Global environment outlook 3: Past, present and future perspectives. Earthscan publications.

Chicago Style (17. basım) Atıf

United Nations Environment Programme. Global Environment Outlook 3: Past, Present and Future Perspectives. London: Earthscan publications, 2002.

MLA (9th ed.) Atıf

United Nations Environment Programme. Global Environment Outlook 3: Past, Present and Future Perspectives. Earthscan publications, 2002.