1.
, . The origin of species by means of natural selection or the preservation of favoured races in the struggle for life. Harmondsworth: Penguin Books; 1984.
et . The origin of species by means of natural selection or the preservation of favoured races in the struggle for life. Harmondsworth : Penguin Books, 25 avril 1984. ISBN 0-14-043205-1
Darwin Charles & Burrow John Wyon. (1984). The origin of species by means of natural selection or the preservation of favoured races in the struggle for life. Penguin Books.
Style de citation MLA (8e éd.)Darwin Charles et Burrow John Wyon. The Origin of Species by Means of Natural Selection or the Preservation of Favoured Races in the Struggle for Life. Penguin Books, 1984.
Attention : ces citations peuvent ne pas être correctes à 100%.