Worldwatch Institute, ebrary, Inc, & Starke, L. (2012). State of the world 2012: Moving toward sustainable prosperity : a Worldwatch Institute report on progress toward a sustainable society. Island Press.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रWorldwatch Institute, Inc ebrary, और Linda Starke. State of the World 2012: Moving Toward Sustainable Prosperity : A Worldwatch Institute Report on Progress Toward a Sustainable Society. Washington, D.C.: Island Press, 2012.
एमएलए (9वां संस्करण) प्रशस्ति पत्रWorldwatch Institute, et al. State of the World 2012: Moving Toward Sustainable Prosperity : A Worldwatch Institute Report on Progress Toward a Sustainable Society. Island Press, 2012.
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