Darwin, C. (1958). The Origin of species: By means of natural selection or the preservation of favoured races in the struggle for life. New American Library.
Cytowanie według stylu Chicago (wyd. 17)Darwin, Charles. The Origin of Species: By Means of Natural Selection or the Preservation of Favoured Races in the Struggle for Life. New York: New American Library, 1958.
Cytowanie według stylu MLA (wyd. 9)Darwin, Charles. The Origin of Species: By Means of Natural Selection or the Preservation of Favoured Races in the Struggle for Life. New American Library, 1958.
Uwaga: Te cytaty mogą odróżniać się od wytycznej twojego fakultetu..