APA (7th ed.) Citation

Ager, D. V. (1981). The nature of the stratigraphical record (2d ed.). Wiley.

Chicago Style (17th ed.) Citation

Ager, D. V. The Nature of the Stratigraphical Record. 2d ed. New York: Wiley, 1981.

MLA (9th ed.) Citation

Ager, D. V. The Nature of the Stratigraphical Record. 2d ed. Wiley, 1981.