Stearns, B. P., & Stearns, S. C. (1999). Watching, from the edge of extinction. Yale University Press.
芝加哥风格引文Stearns, Beverly Peterson, 与 S. C. Stearns. Watching, from the Edge of Extinction. New Haven, CT: Yale University Press, 1999.
MLA引文Stearns, Beverly Peterson, 与 S. C. Stearns. Watching, from the Edge of Extinction. Yale University Press, 1999.
警告：这些引文格式不一定是100％准确.