APA (7th ed.) Citation

Doyle, P., Bennett, M., & Baxter, A. N. (2001). The key to earth history: An introduction to stratigraphy (2nd ed.). Wiley.

Chicago Style (17th ed.) Citation

Doyle, Peter, Matthew Bennett, and Alistair N. Baxter. The Key to Earth History: An Introduction to Stratigraphy. 2nd ed. Chichester, New York: Wiley, 2001.

MLA (9th ed.) Citation

Doyle, Peter, et al. The Key to Earth History: An Introduction to Stratigraphy. 2nd ed. Wiley, 2001.