APA (7th ed.) Citation

Ifenthaler, D., Gibson, D., & Zheng, L. (2018). The Dynamics of Learning Engagement in Challenge-Based Online Learning. IEEE.

Chicago Style (17th ed.) Citation

Ifenthaler, D., David Gibson, and L. Zheng. The Dynamics of Learning Engagement in Challenge-Based Online Learning. IEEE, 2018.

MLA (9th ed.) Citation

Ifenthaler, D., et al. The Dynamics of Learning Engagement in Challenge-Based Online Learning. IEEE, 2018.