Citazione Stile APA (7a Edizione)
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..
Citazione stile Chigago Style (17a edizione)
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.
Citatione MLA (9a 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.
Attenzione: Queste citazioni potrebbero non essere precise al 100%.