Darwin, C. (2003). On the origin of species by means of natural selection: Or the preservation of favoured races in the struggle for life. Wildside Press.
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. Holicong, PA: Wildside Press, 2003.
Citatione MLA (8a ed.)Darwin, Charles. On the Origin of Species by Means of Natural Selection: Or the Preservation of Favoured Races in the Struggle for Life. Wildside Press, 2003.
Attenzione: Queste citazioni potrebbero non essere precise al 100%.