American Association for the Advancement of Science. (2008). Science magazine's state of the planet. Island Press.
Lua i Stíl Chicago (17ú heag.)American Association for the Advancement of Science. Science Magazine's State of the Planet. Washington, D.C.: Island Press, 2008.
Lua MLA (8ú heag.)American Association for the Advancement of Science. Science Magazine's State of the Planet. Island Press, 2008.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.