Georges Louis Leclerc comte de Buffon (1817). “A Natural History, General and Particular: Containing the History and Theory of the Earth, a General History of Man, the Brute Creation, Vegetables, Minerals, Etc. Etc”, p.128
Georges Louis Leclerc comte de Buffon (1817). “A Natural History, General and Particular: Containing the History and Theory of the Earth, a General History of Man, the Brute Creation, Vegetables, Minerals, Etc. Etc”, p.6