American Association for the Advancement of Science. (2008). Science magazine's state of the planet. Island Press.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रAmerican Association for the Advancement of Science. Science Magazine's State of the Planet. Washington, D.C.: Island Press, 2008.
एमएलए (8वां संस्करण) प्रशस्ति पत्रAmerican Association for the Advancement of Science. Science Magazine's State of the Planet. Island Press, 2008.
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