Παραπομπή σε μορφή APA (7η εκδ.)

Chou, Y. (2014). Actionable gamification: Beyond points, badges, and leaderboards (NA.). Octalysis.

Παραπομπή σε μορφή Chicago (17η εκδ.)

Chou, YU-KAI. Actionable Gamification: Beyond Points, Badges, and Leaderboards. NA. USA: Octalysis, 2014.

Παραπομπή σε μορφή MLA (9th εκδ.)

Chou, YU-KAI. Actionable Gamification: Beyond Points, Badges, and Leaderboards. NA. Octalysis, 2014.