Lua APA (7ú heag.)
Gardner, G., Prugh, T., Renner, M., & Mastny, L. (2015). State of the world 2015: Confronting hidden threats to sustainability. Island Press.
Lua i Stíl Chicago (17ú heag.)
Gardner, G., Tom Prugh, Michael Renner, agus Lisa Mastny. State of the World 2015: Confronting Hidden Threats to Sustainability. Washington, District of Columbia: Island Press, 2015.
Lua MLA (9ú heag.)
Gardner, G., et al. State of the World 2015: Confronting Hidden Threats to Sustainability. Island Press, 2015.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.