TY  - BOOK
AU  - Eyal, Nir. Hoover, Ryan.
TI  - Hooked : how to build habit-forming products
SN  - 9780241184837
U1  - 658.575  EYA;1  R 
PY  - 2014///
CY  - Great Britain
PB  - Penguin
KW  - Hooked,build,habit-forming
ER  -