Elements of geology
MLA
Lyell, Charles. Elements of Geology. 2d. American ed. Philadelphia: Troutman & Hayes, 1851
APA, 7th edition
Lyell, C. (1851). Elements of geology. 2d. American ed. Philadelphia: Troutman & Hayes
Chicago, 17th edition
Lyell, Charles. Elements of geology. 2d. American ed. Philadelphia: Troutman & Hayes, 1851