APA (7th ed.) Citation

Castillo, T., & Novak, J. (2008). Game development essentials: Game level design. Delmar.

Chicago Style (17th ed.) Citation

Castillo, Travis, and Jeannie Novak. Game Development Essentials: Game Level Design. Clifton Park, N.Y.: Delmar, 2008.

MLA (9th ed.) Citation

Castillo, Travis, and Jeannie Novak. Game Development Essentials: Game Level Design. Delmar, 2008.