APA-viite (7. p.)

Darwin, C., & Burrow, J. W. (1968). The origin of species. Penguin Books.

Chicago-viite (17. p.)

Darwin, Charles, ja J. W. Burrow. The Origin of Species. Harmondsworth, Middlesex: Penguin Books, 1968.

MLA-viite (9. p.)

Darwin, Charles, ja J. W. Burrow. The Origin of Species. Penguin Books, 1968.