Project Director : Brown, L. R. (1989). State of the world, 1989: A Worldwatch Institute report on progress toward a sustainable society. W W Norton & company.
Chicago Edition CitationProject Director : Brown, Lester R. State of the World, 1989: A Worldwatch Institute Report on Progress Toward a Sustainable Society. New York: W W Norton & company, 1989.
MLA Edition CitationProject Director : Brown, Lester R. State of the World, 1989: A Worldwatch Institute Report on Progress Toward a Sustainable Society. W W Norton & company, 1989.
Warning: These citations may not always be 100% accurate.