.brown, l. R., flavin, c., & starke, l. (1996). State of the world, 1996: A Worldwatch Institute report on progress toward a sustainable society. Norton.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्र.brown, lester R., christopher flavin, और linda starke. State of the World, 1996: A Worldwatch Institute Report on Progress Toward a Sustainable Society. New York: Norton, 1996.
एमएलए (9वां संस्करण) प्रशस्ति पत्र.brown, lester R., et al. State of the World, 1996: A Worldwatch Institute Report on Progress Toward a Sustainable Society. Norton, 1996.
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