Starke, L. (1989). State of the World: 1988: A worldwatch institute report on progress toward a sustainable society. Prentice-Hall.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रStarke, Linda. State of the World: 1988: A Worldwatch Institute Report on Progress Toward a Sustainable Society. Prentice-Hall, 1989.
एमएलए (9वां संस्करण) प्रशस्ति पत्रStarke, Linda. State of the World: 1988: A Worldwatch Institute Report on Progress Toward a Sustainable Society. Prentice-Hall, 1989.
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