Darwin, C., Barrett, P. H., & Freeman, R. B. (1986). The geology of the voyage of H. M. S. beagle, pt. 1: Structure and distribution of coral reefs. Pickering.
Chicago-viite (17. p.)Darwin, Charles, Paul H. Barrett, ja R. B. Freeman. The Geology of the Voyage of H. M. S. Beagle, Pt. 1: Structure and Distribution of Coral Reefs. London: Pickering, 1986.
MLA-viite (8. p.)Darwin, Charles, et al. The Geology of the Voyage of H. M. S. Beagle, Pt. 1: Structure and Distribution of Coral Reefs. Pickering, 1986.
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