APA (7th ed.) Zitazioa

Eyal, N. (2014). Hooked: How to build habit-forming products. Portfolio/Penguin.

Chicago Style (17th ed.) Zitazioa

Eyal, Nir. Hooked: How to Build Habit-forming Products. London: Portfolio/Penguin, 2014.

MLA (9th ed.) Zitazioa

Eyal, Nir. Hooked: How to Build Habit-forming Products. Portfolio/Penguin, 2014.