APA (7th ed.) Citation

Lyell, C. (1990). Principles of geology. The Univ. of Chicago Press.

Chicago Style (17th ed.) Citation

Lyell, Charles. Principles of Geology. Chicago [u.a.]: The Univ. of Chicago Press, 1990.

MLA (9th ed.) Citation

Lyell, Charles. Principles of Geology. The Univ. of Chicago Press, 1990.

Warning: These citations may not always be 100% accurate.