APA (7th ed.) Citation

Darwin, C. (2004). Journal of Researches into the Natural History and Geology of the Countries Visited During the Voyage Round the World of H.M.S. Beagle Under the Command of Captain Fitz Roy, R.N. Project Gutenberg.

Chicago Style (17th ed.) Citation

Darwin, Charles. Journal of Researches into the Natural History and Geology of the Countries Visited During the Voyage Round the World of H.M.S. Beagle Under the Command of Captain Fitz Roy, R.N. Project Gutenberg, 2004.

MLA (9th ed.) Citation

Darwin, Charles. Journal of Researches into the Natural History and Geology of the Countries Visited During the Voyage Round the World of H.M.S. Beagle Under the Command of Captain Fitz Roy, R.N. Project Gutenberg, 2004.

Warning: These citations may not always be 100% accurate.