Citazione Stile APA (7a Edizione)

Dunbar, C. O. (1957). Principles of Stratigraphy (Authorized reprint.). John Wiley & Sons, Inc.

Citazione stile Chigago Style (17a edizione)

Dunbar, Carl O. Principles of Stratigraphy. Authorized reprint. New York: John Wiley & Sons, Inc, 1957.

Citatione MLA (9a ed.)

Dunbar, Carl O. Principles of Stratigraphy. Authorized reprint. John Wiley & Sons, Inc, 1957.