Darwin, C., Barrett, P. H., & Freeman, R. B. (1986). The geology of the voyage of H. M. S. beagle, pt. 3: Geological observations on South America. Pickering.
Style de citation Chicago (17e éd.)Darwin, Charles, Paul H. Barrett, et R. B. Freeman. The Geology of the Voyage of H. M. S. Beagle, Pt. 3: Geological Observations on South America. London: Pickering, 1986.
Style de citation MLA (8e éd.)Darwin, Charles, et al. The Geology of the Voyage of H. M. S. Beagle, Pt. 3: Geological Observations on South America. Pickering, 1986.
Attention : ces citations peuvent ne pas être correctes à 100%.