Walz, S. P., & Deterding, S. (2014). The gameful world: Approaches, issues, applications. The MIT Press.
Citazione stile Chigago Style (17a edizione)Walz, Steffen P., e Sebastian Deterding. The Gameful World: Approaches, Issues, Applications. Cambridge, Massachusetts ; London, England: The MIT Press, 2014.
Citatione MLA (9a ed.)Walz, Steffen P., e Sebastian Deterding. The Gameful World: Approaches, Issues, Applications. The MIT Press, 2014.
Attenzione: Queste citazioni potrebbero non essere precise al 100%.