STATE. (1992). State of the world 1992: A worldwatch institute reporton progress toward a sustainable society. WW Norton and co.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रSTATE. State of the World 1992: A Worldwatch Institute Reporton Progress Toward a Sustainable Society. New York: WW Norton and co, 1992.
एमएलए (9वां संस्करण) प्रशस्ति पत्रSTATE. State of the World 1992: A Worldwatch Institute Reporton Progress Toward a Sustainable Society. WW Norton and co, 1992.
चेतावनी: ये उद्धरण हमेशा 100% सटीक नहीं हो सकते हैं.