Fitzroy, R., Darwin, C. y King, P. (1839). Narrative of the surveying voyages of his majesty's ships Adventure and Beagle (vol.2- Appendix): between the years 1826 and 1836 : describing their examination of the southern shores of South America, and the Beagles's circumnavigation of the globe. Henry Colburn. Disponible en https://doi.org/10.34720/17a2-ja85