APA (7th ed.) Citation

Koontz, D. R. (2018). The forbidden door: A Jane Hawk novel (First edition.). Bantam Books.

Chicago Style (17th ed.) Citation

Koontz, Dean R. The Forbidden Door: A Jane Hawk Novel. First edition. New York: Bantam Books, 2018.

MLA (8th ed.) Citation

Koontz, Dean R. The Forbidden Door: A Jane Hawk Novel. First edition. Bantam Books, 2018.

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