APA (7th ed.) Citation

Gemmell, D. (1995). The king beyond the gate/David Gemmell. Ballantine Books.

Chicago Style (17th ed.) Citation

Gemmell, David. The King Beyond the Gate/David Gemmell. New York: Ballantine Books, 1995.

MLA (8th ed.) Citation

Gemmell, David. The King Beyond the Gate/David Gemmell. Ballantine Books, 1995.