Darwin, C. (1909). On the origin of species: By means of natural selection, or the preservation of favoured races in the struggle for life. Cassell.
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. London [u.a.]: Cassell, 1909.
MLA-Zitierstil (9. Ausg.)Darwin, Charles. On the Origin of Species: By Means of Natural Selection, or the Preservation of Favoured Races in the Struggle for Life. Cassell, 1909.
Achtung: Diese Zitate sind unter Umständen nicht zu 100% korrekt.