Vista normal
Vista MARC
Koster, Raph, 1971- (Nombre personal)
A theory of fun for game design, c2005: t.p. (Raph Koster) prelim. pages (b. 1971)
Raph Koster's Website, March 15, 2006: (Raph Koster, Raphael Koster; b. Sept. 1971 in Long Island; online game designer, musician)
