APA (7th ed.) Citation
Eyal, N., & Hoover, R. (2014). Hooked: How to Build Habit-Forming Products. Penguin Group.
Chicago Style (17th ed.) Citation
Eyal, Nir, and Ryan Hoover. Hooked: How to Build Habit-Forming Products. New York: Penguin Group, 2014.
MLA (9th ed.) Citation
Eyal, Nir, and Ryan Hoover. Hooked: How to Build Habit-Forming Products. Penguin Group, 2014.
Warning: These citations may not always be 100% accurate.