APA (7th ed.) Citation
United Nations Environment Programme & UNEP. Global Environment Outlook 3: Past, present and future perspectives. GEO-3: past, present and future perspectives.
Chicago Style (17th ed.) Citation
United Nations Environment Programme and UNEP. Global Environment Outlook 3: Past, Present and Future Perspectives. GEO-3: Past, Present and Future Perspectives. UNEP. EARTHSCAN.
MLA (9th ed.) Citation
United Nations Environment Programme and UNEP. Global Environment Outlook 3: Past, Present and Future Perspectives. GEO-3: Past, Present and Future Perspectives.
Warning: These citations may not always be 100% accurate.