APA (7th ed.) Citation

Portela, F., & Queirós, R. (2021). Next-Generation Applications and Implementations of Gamification Systems.

Chicago Style (17th ed.) Citation

Portela, Filipe, and Ricardo Queirós. Next-Generation Applications and Implementations of Gamification Systems. 2021.

MLA (9th ed.) Citation

Portela, Filipe, and Ricardo Queirós. Next-Generation Applications and Implementations of Gamification Systems. 2021.

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