Levy, S. (2011). Once & future giants: What Ice Age extinctions tell us about the fate of earth's largest animals. Oxford University Press.
Citace podle Chicago (17th ed.)Levy, Sharon. Once & Future Giants: What Ice Age Extinctions Tell Us About the Fate of Earth's Largest Animals. Oxford ; New York: Oxford University Press, 2011.
Citace podle MLA (9th ed.)Levy, Sharon. Once & Future Giants: What Ice Age Extinctions Tell Us About the Fate of Earth's Largest Animals. Oxford University Press, 2011.
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