Duggan, K. (2013). Business gamification for dummies. Hoboken, N.J: John Wiley & Sons.
Čikaški stil citiranjaDuggan, Kris. Business Gamification for Dummies. Hoboken, N.J: John Wiley & Sons, 2013.
MLA način citiranjaDuggan, Kris. Business Gamification for Dummies. Hoboken, N.J: John Wiley & Sons, 2013.
Upozorenje: Ovi citati možda nisu uvijek 100% točni.