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.
Chicago-Zitierstil (17. Ausg.)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.
MLA-Zitierstil (8. Ausg.)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.
Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.