ebrary, Inc, Ryann, A. L., & Perkins, N. J. (2011). The Black Sea: Dynamics, ecology and conservation. Nova Science Publishers.
芝加哥风格引文ebrary, Inc, Amy L. Ryann, 与 Nathan J. Perkins. The Black Sea: Dynamics, Ecology and Conservation. New York: Nova Science Publishers, 2011.
MLA引文ebrary, Inc, et al. The Black Sea: Dynamics, Ecology and Conservation. Nova Science Publishers, 2011.
警告：这些引文格式不一定是100％准确.