STATE. (1992). State of the world 1992: A worldwatch institute reporton progress toward a sustainable society. WW Norton and co.
Chicago Style (17. basım) AtıfSTATE. State of the World 1992: A Worldwatch Institute Reporton Progress Toward a Sustainable Society. New York: WW Norton and co, 1992.
MLA (9th ed.) AtıfSTATE. State of the World 1992: A Worldwatch Institute Reporton Progress Toward a Sustainable Society. WW Norton and co, 1992.
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