Dyfyniad APA

Koster, R. (2005). A theory of fun for game design. Paraglyph Press.

Dyfyniad Arddull Chicago

Koster, Raph. A Theory of Fun for Game Design. Scottsdale: Paraglyph Press, 2005.

Dyfyniad MLA

Koster, Raph. A Theory of Fun for Game Design. Paraglyph Press, 2005.

Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.