Citazione Stile APA (7a Edizione)

Doyle, P., Baxter, A. N., & Bennett, M. (1994). The key to earth history: An introduction to stratigraphy. John Wiley & Sons.

Citazione stile Chigago Style (17a edizione)

Doyle, Peter, Alistair N. Baxter, e Matthew Bennett. The Key to Earth History: An Introduction to Stratigraphy. Chichester: John Wiley & Sons, 1994.

Citatione MLA (9a ed.)

Doyle, Peter, et al. The Key to Earth History: An Introduction to Stratigraphy. John Wiley & Sons, 1994.