Darwin, C. R., Leakey, R. E., Bynum, W. F., & Barrett, J. (1979). The illustrated Origin of species. Hill and Wang, a division of Farrar, Straus and Giroux.
Cita Chicago Style (17a ed.)Darwin, Charles Robert, Richard E. Leakey, William F. Bynum, y J.A Barrett. The Illustrated Origin of Species. New York: Hill and Wang, a division of Farrar, Straus and Giroux, 1979.
Cita MLA (9a ed.)Darwin, Charles Robert, et al. The Illustrated Origin of Species. Hill and Wang, a division of Farrar, Straus and Giroux, 1979.
Precaución: Estas citas no son 100% exactas.