APA (7th ed.) Citation

Ellington, H., Addinall, E., & Percival, F. (1984). Case studies in game desgin. Kogan Page.

Chicago Style (17th ed.) Citation

Ellington, Henry, Eric Addinall, and Fred Percival. Case Studies in Game Desgin. London: Kogan Page, 1984.

MLA (9th ed.) Citation

Ellington, Henry, et al. Case Studies in Game Desgin. Kogan Page, 1984.