APA (7th ed.) Citation

Lebres, I., Rita, P., Moro, S., & Ramos, P. (2018). Factors determining player drop-out in Massive Multiplayer Online Games.

Chicago Style (17th ed.) Citation

Lebres, I., P. Rita, S. Moro, and P. Ramos. Factors Determining Player Drop-out in Massive Multiplayer Online Games. 2018.

MLA (8th ed.) Citation

Lebres, I., et al. Factors Determining Player Drop-out in Massive Multiplayer Online Games. 2018.