ebrary, Inc, Ryann, A. L., & Perkins, N. J. (2011). The Black Sea: Dynamics, ecology and conservation. Nova Science Publishers.
Chicagoスタイル(17版)引用形式ebrary, Inc, Amy L. Ryann, , Nathan J. Perkins. The Black Sea: Dynamics, Ecology and Conservation. New York: Nova Science Publishers, 2011.
MLA(9版)引用形式ebrary, Inc, et al. The Black Sea: Dynamics, Ecology and Conservation. Nova Science Publishers, 2011.
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