ebrary, Inc, Mullin, S. J., & Seigel, R. A. (2009). Snakes: Ecology and conservation. Comstock Pub. Associates/Cornell University Press.
芝加哥风格引文ebrary, Inc, Stephen J. Mullin, 与 Richard A. Seigel. Snakes: Ecology and Conservation. Ithaca: Comstock Pub. Associates/Cornell University Press, 2009.
MLA引文ebrary, Inc, et al. Snakes: Ecology and Conservation. Comstock Pub. Associates/Cornell University Press, 2009.
警告：这些引文格式不一定是100％准确.