Cita APA (7a ed.)

Darwin, C. R. (1891). Journal of reseraches into the natural history and geology of the countries visited during the voyage of H.M.S. Beagle round the world, under the command of Captain Fitz Roy, R. N. T. Nelson and Sons.

Cita Chicago Style (17a ed.)

Darwin, Charles Robert. Journal of Reseraches into the Natural History and Geology of the Countries Visited During the Voyage of H.M.S. Beagle Round the World, Under the Command of Captain Fitz Roy, R. N. Londres: T. Nelson and Sons, 1891.

Cita MLA (9a ed.)

Darwin, Charles Robert. Journal of Reseraches into the Natural History and Geology of the Countries Visited During the Voyage of H.M.S. Beagle Round the World, Under the Command of Captain Fitz Roy, R. N. T. Nelson and Sons, 1891.