Hooked. : How to Build Habit-Forming Products.

MLA

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

APA

Eyal, N. (2014). Hooked. : How to Build Habit-Forming Products. Londen: Portfolio Penguin.

Chicago

Eyal, Nir Hooked.: How to Build Habit-Forming Products. Londen: Portfolio Penguin, 2014.