APA Citation

Deterding, S., Dixon, D., Khaled, R., & Nacke, L. (2011). From game design elements to gamefulness: Defining Gamification. Tampere, Finland: ACM.

Chicago Style Citation

Deterding, Sebastian., Dan Dixon, Rilla Khaled, and Lennart Nacke. From Game Design Elements to Gamefulness: Defining Gamification. Tampere, Finland: ACM, 2011.

MLA Citation

Deterding, Sebastian., Dan Dixon, Rilla Khaled, and Lennart Nacke. From Game Design Elements to Gamefulness: Defining Gamification. Tampere, Finland: ACM, 2011.

Warning: These citations may not always be 100% accurate.