Estes, R. (2014). The gnu's world: Serengeti wildebeest ecology and life history. University of California Press.
芝加哥风格引文Estes, Richard. The Gnu's World: Serengeti Wildebeest Ecology and Life History. Berkeley, California ; Los Angeles, California ; London, England: University of California Press, 2014.
MLA引文Estes, Richard. The Gnu's World: Serengeti Wildebeest Ecology and Life History. University of California Press, 2014.
警告：这些引文格式不一定是100％准确.