Rules of play; game design fundamentals

MLA

Salen, Katie, and Eric Zimmerman. Rules of Play; Game Design Fundamentals. Cambridge, MA: MIT Press, 2004.

APA

Salen, K., & Zimmerman, E. (2004). Rules of play; game design fundamentals. Cambridge, MA: MIT Press.

Chicago

Salen, Katie, and Eric Zimmerman. Rules of Play; Game Design Fundamentals. Cambridge, MA: MIT Press, 2004.