Cita APA (7a ed.)

Lyell, C. (1866). Elements of geology; or the ancient changes of the earth and its inhabitants (6h. ed.). D. Appleton & Cy..

Cita Chicago Style (17a ed.)

Lyell, Charles. Elements of Geology; or the Ancient Changes of the Earth and Its Inhabitants. 6h. ed. New York: D. Appleton & Cy., 1866.

Cita MLA (9a ed.)

Lyell, Charles. Elements of Geology; or the Ancient Changes of the Earth and Its Inhabitants. 6h. ed. D. Appleton & Cy., 1866.