Worldwatch Institute, Brown, L. R., & Starke, L. (1998). State of the world, 1998: A Worldwatch Institute report on progress toward a sustainable society. Norton.
芝加哥风格引文Worldwatch Institute, Lester Russell Brown, 与 Linda Starke. State of the World, 1998: A Worldwatch Institute Report on Progress Toward a Sustainable Society. New York: Norton, 1998.
MLA引文Worldwatch Institute, et al. State of the World, 1998: A Worldwatch Institute Report on Progress Toward a Sustainable Society. Norton, 1998.
警告：这些引文格式不一定是100％准确.