APA (7th ed.) Citation

Hallam, A. (1989). Great geological controversies (2nd ed.). Oxford University Press.

Chicago Style (17th ed.) Citation

Hallam, A. Great Geological Controversies. 2nd ed. Oxford ; New York: Oxford University Press, 1989.

MLA (9th ed.) Citation

Hallam, A. Great Geological Controversies. 2nd ed. Oxford University Press, 1989.