Brown, L. R., Renner, M., Flavin, C., & Starke, L. (1997). Vital signs, 1997: The environmental trends that are changing our future. Earthscan.
芝加哥风格引文Brown, Lester Russell, Michael Renner, Christopher Flavin, 与 Linda Starke. Vital Signs, 1997: The Environmental Trends That Are Changing Our Future. London: Earthscan, 1997.
MLA引文Brown, Lester Russell, et al. Vital Signs, 1997: The Environmental Trends That Are Changing Our Future. Earthscan, 1997.
警告：这些引文格式不一定是100％准确.