Darwin, C. (1965). The origin of species: By means of natural selection or the preservation of favoured races in the struggle for life (8. print.). New American Library.
Chicago-Zitierstil (17. Ausg.)Darwin, Charles. The Origin of Species: By Means of Natural Selection or the Preservation of Favoured Races in the Struggle for Life. 8. print. New York, NY [u.a.]: New American Library, 1965.
MLA-Zitierstil (9. Ausg.)Darwin, Charles. The Origin of Species: By Means of Natural Selection or the Preservation of Favoured Races in the Struggle for Life. 8. print. New American Library, 1965.
Achtung: Diese Zitate sind unter Umständen nicht zu 100% korrekt.