APA (7th ed.) Citation

Sage Publications, Rutter, J., & Bryce, J. (2006). Understanding digital games. SAGE.

Chicago Style (17th ed.) Citation

Sage Publications, Jason Rutter, and Jo Bryce. Understanding Digital Games. London: SAGE, 2006.

MLA (9th ed.) Citation

Sage Publications, et al. Understanding Digital Games. SAGE, 2006.