Lyell, C. (1867). Principles of geology: Or, The modern changes of the earth and its inhabitants considered as illustrative of geology (10th and entirely rev. ed. ...). London: J. Murray.MLA Citation
Lyell, Charles. Principles of Geology: Or, The Modern Changes of the Earth and Its Inhabitants Considered As Illustrative of Geology. 10th and entirely rev. ed. ... London: J. Murray, 1867.