Darwin Charles. (1901). The origin of species by means of natural selection or the preservation of favoured races in the struggle for life. John Murray.
Citace podle Chicago (17th ed.)Darwin Charles. The Origin of Species by Means of Natural Selection or the Preservation of Favoured Races in the Struggle for Life. Londres: John Murray, 1901.
Citace podle MLA (9th ed.)Darwin Charles. The Origin of Species by Means of Natural Selection or the Preservation of Favoured Races in the Struggle for Life. John Murray, 1901.
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