APA (7th ed.) Citation

O'Brien, K. (2019). Vicious (First premium mass market edition.). Pinnacle Books.

Chicago Style (17th ed.) Citation

O'Brien, Kevin. Vicious. First premium mass market edition. New York: Pinnacle Books, 2019.

MLA (8th ed.) Citation

O'Brien, Kevin. Vicious. First premium mass market edition. Pinnacle Books, 2019.

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