Lua APA (7ú heag.)
Frissen, V., & Beijer, S. (2015). Playful identities: The ludification of digital media cultures. Amsterdam University Press.
Lua i Stíl Chicago (17ú heag.)
Frissen, Valerie, agus Suzan Beijer. Playful Identities: The Ludification of Digital Media Cultures. Amsterdam, [Netherlands]: Amsterdam University Press, 2015.
Lua MLA (9ú heag.)
Frissen, Valerie, agus Suzan Beijer. Playful Identities: The Ludification of Digital Media Cultures. Amsterdam University Press, 2015.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.