APA Citation

KOSTER, R. (2014). A Theory of Fun for Game Design. OReilly Media.

Chicago Style Citation

KOSTER, Raph. A Theory of Fun for Game Design. OReilly Media, 2014.

MLA Citation

KOSTER, Raph. A Theory of Fun for Game Design. OReilly Media, 2014.

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