APA (7th ed.) Citation

Walter Jon Williams. (2009). This is not a game (18th.). Orbit.

Chicago Style (17th ed.) Citation

Walter Jon Williams. This Is Not a Game. 18th. London: Orbit, 2009.

MLA (9th ed.) Citation

Walter Jon Williams. This Is Not a Game. 18th. Orbit, 2009.

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