APA (7th ed.) Citation

Koontz, D. (2007). The darkest evening of the year. Harpercollins Publishers.

Chicago Style (17th ed.) Citation

Koontz, Dean. The Darkest Evening of the Year. London: Harpercollins Publishers, 2007.

MLA (9th ed.) Citation

Koontz, Dean. The Darkest Evening of the Year. Harpercollins Publishers, 2007.