APA (7th ed.) Citation

Donaldson, S. R. (1981). The Illearth war (12. Print.). Ballantine Books.

Chicago Style (17th ed.) Citation

Donaldson, Stephen R.. The Illearth War. 12. Print. New York: Ballantine Books, 1981.

MLA (9th ed.) Citation

Donaldson, Stephen R.. The Illearth War. 12. Print. Ballantine Books, 1981.