Citace podle APA (7th ed.)
Darwin, C. (2001). On the origin of species by means of natural selection: Or, The Preservation of favoured races in the struggle for life. Electric Book Co..
Citace podle Chicago (17th ed.)
Darwin, Charles. On the Origin of Species by Means of Natural Selection: Or, The Preservation of Favoured Races in the Struggle for Life. London: Electric Book Co., 2001.
Citace podle MLA (9th ed.)
Darwin, Charles. On the Origin of Species by Means of Natural Selection: Or, The Preservation of Favoured Races in the Struggle for Life. Electric Book Co., 2001.
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