APA-čujuhus (7. p.)
Darwin, C., & Beer, G. (2008). On the origin of species (Rev. ed.). Oxford University Press.
Chicago-čujuhus (17. p.)
Darwin, Charles, juo Gillian Beer. On the Origin of Species. Rev. ed. New York: Oxford University Press, 2008.
MLA-čujuhus (9. p.)
Darwin, Charles, juo Gillian Beer. On the Origin of Species. Rev. ed. Oxford University Press, 2008.
Muitte dárkkistit čujuhemiid riektatvuođa, ovdal go geavahat daid iežat deavsttas.