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.
Citazione stile Chigago Style (17a edizione)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.
Citatione MLA (9a 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.
Attenzione: Queste citazioni potrebbero non essere precise al 100%.