Darwin, C., & Beer, G. (2008). On the origin of species (Rev. ed.). Oxford University Press.
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Chicago-čujuhus (17. p.)
Darwin, Charles, juo Gillian Beer. On the Origin of Species. Rev. ed. New York: Oxford University Press, 2008.
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MLA-čujuhus (9. p.)
Darwin, Charles, juo Gillian Beer. On the Origin of Species. Rev. ed. Oxford University Press, 2008.
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