APA (7th ed.) Citation

Koontz, D. (2010). Relentless. Harper.

Chicago Style (17th ed.) Citation

Koontz, Dean. Relentless. London: Harper, 2010.

MLA (9th ed.) Citation

Koontz, Dean. Relentless. Harper, 2010.

Warning: These citations may not always be 100% accurate.