Goldstein, M. (2009). Games at Work. St. Martin's Griffin.
Cita Chicago (17th ed.)Goldstein, Mauricio. Games at Work. St. Martin's Griffin, 2009.
Cita MLA (9th ed.)Goldstein, Mauricio. Games at Work. St. Martin's Griffin, 2009.
Atenció: Aquestes cites poden no estar 100% correctes.