Cita APA (7th ed.)

American Association for the Advancement of Science. (2008). Science magazine's state of the planet. Island Press.

Cita Chicago (17th ed.)

American Association for the Advancement of Science. Science Magazine's State of the Planet. Washington, D.C.: Island Press, 2008.

Cita MLA (8th ed.)

American Association for the Advancement of Science. Science Magazine's State of the Planet. Island Press, 2008.