(2014). A theory of fun for game design / by Raph Koster ; [foreword by Will Wright].
Citazione stile Chigago Style (17a edizione)A Theory of Fun for Game Design / by Raph Koster ; [foreword by Will Wright]. 2014.
Citatione MLA (9a ed.)A Theory of Fun for Game Design / by Raph Koster ; [foreword by Will Wright]. 2014.
Attenzione: Queste citazioni potrebbero non essere precise al 100%.