Koster, R. (2005). A theory of fun for game design. Paraglyph Press.
Chicago Style (17th ed.) CitationKoster, Raph. A Theory of Fun for Game Design. Scottsdale: Paraglyph Press, 2005.
ציטוט MLAKoster, Raph. A Theory of Fun for Game Design. Paraglyph Press, 2005.
אזהרה: ציטוטים אלה לעיתים לא מדויקים ב 100%.