APA (7th ed.) Citation

Drachen, A., Mirza-Babaei, P., & Nacke, L. E. (2018). Games user research (First edition.). Oxford University Press. https://doi.org/10.1093/oso/9780198794844.001.0001

Chicago Style (17th ed.) Citation

Drachen, Anders, Pejman Mirza-Babaei, and Lennart E. Nacke. Games User Research. First edition. Oxford: Oxford University Press, 2018. https://doi.org/10.1093/oso/9780198794844.001.0001.

MLA (9th ed.) Citation

Drachen, Anders, et al. Games User Research. First edition. Oxford University Press, 2018. https://doi.org/10.1093/oso/9780198794844.001.0001.