Darwin Charles. (1890). Journal of researches 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. By Charles Darwin, M.A., F.R.S. From the corrected and enlarged edition of 1845. With a biographical introduction. Ninth edition (9a. ed.). Ward, Lock and Co.
Trích dẫn kiểu Chicago (xuất bản lần thứ 7)Darwin Charles. Journal of Researches 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. By Charles Darwin, M.A., F.R.S. From the Corrected and Enlarged Edition of 1845. With a Biographical Introduction. Ninth Edition. 9a. ed. Londres: Ward, Lock and Co, 1890.
Trích dẫn kiểu MLA (xuất bản lần thứ 9)Darwin Charles. Journal of Researches 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. By Charles Darwin, M.A., F.R.S. From the Corrected and Enlarged Edition of 1845. With a Biographical Introduction. Ninth Edition. 9a. ed. Ward, Lock and Co, 1890.