(2014). A theory of fun for game design / by Raph Koster ; [foreword by Will Wright].
Cita Chicago (17th ed.)A Theory of Fun for Game Design / by Raph Koster ; [foreword by Will Wright]. 2014.
Cita MLA (9th ed.)A Theory of Fun for Game Design / by Raph Koster ; [foreword by Will Wright]. 2014.
Atenció: Aquestes cites poden no estar 100% correctes.